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Finding the Fourth Proportional to 25,291.76, 34,903.72 and 14,113.76

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Solution

The fourth proportional to 25,291.76, 34,903.72 and 14,113.76 is: 19,477.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,291.76 : 34,903.72 = 14,113.76 : x
  2. Step 2: Convert to fraction form
    25,291.76/34,903.72 = 14,113.76/x
  3. Step 3: Cross multiply
    25,291.76x = 34,903.72 × 14,113.76
  4. Step 4: Simplify right side
    25,291.76x = 492,622,727.19
  5. Step 5: Solve for x
    x = 492,622,727.19/25,291.76
  6. Step 6: Final answer
    x = 19,477.60

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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.