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Finding the Fourth Proportional to 50,885.90, 70,230.96 and 28,232.19

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Solution

The fourth proportional to 50,885.90, 70,230.96 and 28,232.19 is: 38,965.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,885.90 : 70,230.96 = 28,232.19 : x
  2. Step 2: Convert to fraction form
    50,885.90/70,230.96 = 28,232.19/x
  3. Step 3: Cross multiply
    50,885.90x = 70,230.96 × 28,232.19
  4. Step 4: Simplify right side
    50,885.90x = 1,982,773,806.60
  5. Step 5: Solve for x
    x = 1,982,773,806.60/50,885.90
  6. Step 6: Final answer
    x = 38,965.09

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Half scale
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Double scale
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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.