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Finding the Fourth Proportional to 29,160.71, 40,231.73 and 16,411.31

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Solution

The fourth proportional to 29,160.71, 40,231.73 and 16,411.31 is: 22,641.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,160.71 : 40,231.73 = 16,411.31 : x
  2. Step 2: Convert to fraction form
    29,160.71/40,231.73 = 16,411.31/x
  3. Step 3: Cross multiply
    29,160.71x = 40,231.73 × 16,411.31
  4. Step 4: Simplify right side
    29,160.71x = 660,255,310.81
  5. Step 5: Solve for x
    x = 660,255,310.81/29,160.71
  6. Step 6: Final answer
    x = 22,641.95

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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.