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Finding the Fourth Proportional to 29,708.91, 40,998.06 and 16,280.15

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Solution

The fourth proportional to 29,708.91, 40,998.06 and 16,280.15 is: 22,466.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,708.91 : 40,998.06 = 16,280.15 : x
  2. Step 2: Convert to fraction form
    29,708.91/40,998.06 = 16,280.15/x
  3. Step 3: Cross multiply
    29,708.91x = 40,998.06 × 16,280.15
  4. Step 4: Simplify right side
    29,708.91x = 667,454,361.52
  5. Step 5: Solve for x
    x = 667,454,361.52/29,708.91
  6. Step 6: Final answer
    x = 22,466.47

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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.