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Finding the Fourth Proportional to 29,411.60, 44,141.70 and 13,640.90

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Solution

The fourth proportional to 29,411.60, 44,141.70 and 13,640.90 is: 20,472.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,411.60 : 44,141.70 = 13,640.90 : x
  2. Step 2: Convert to fraction form
    29,411.60/44,141.70 = 13,640.90/x
  3. Step 3: Cross multiply
    29,411.60x = 44,141.70 × 13,640.90
  4. Step 4: Simplify right side
    29,411.60x = 602,132,515.53
  5. Step 5: Solve for x
    x = 602,132,515.53/29,411.60
  6. Step 6: Final answer
    x = 20,472.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.