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Finding the Fourth Proportional to 29,290.48, 40,439.48 and 19,236.76

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Solution

The fourth proportional to 29,290.48, 40,439.48 and 19,236.76 is: 26,558.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,290.48 : 40,439.48 = 19,236.76 : x
  2. Step 2: Convert to fraction form
    29,290.48/40,439.48 = 19,236.76/x
  3. Step 3: Cross multiply
    29,290.48x = 40,439.48 × 19,236.76
  4. Step 4: Simplify right side
    29,290.48x = 777,924,571.28
  5. Step 5: Solve for x
    x = 777,924,571.28/29,290.48
  6. Step 6: Final answer
    x = 26,558.96

Related Problems

Find fourth proportional to 14,645.24, 20,219.74 and 9,618.38
Half scale
Find fourth proportional to 58,580.96, 80,878.96 and 38,473.52
Double scale
Find fourth proportional to 29,291.48, 40,440.86 and 19,237.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.