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Finding the Fourth Proportional to 29,489.94, 40,696.56 and 16,061.40

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Solution

The fourth proportional to 29,489.94, 40,696.56 and 16,061.40 is: 22,164.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,489.94 : 40,696.56 = 16,061.40 : x
  2. Step 2: Convert to fraction form
    29,489.94/40,696.56 = 16,061.40/x
  3. Step 3: Cross multiply
    29,489.94x = 40,696.56 × 16,061.40
  4. Step 4: Simplify right side
    29,489.94x = 653,643,728.78
  5. Step 5: Solve for x
    x = 653,643,728.78/29,489.94
  6. Step 6: Final answer
    x = 22,164.97

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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.