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Finding the Fourth Proportional to 29,160.81, 43,753.57 and 14,369.81

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Solution

The fourth proportional to 29,160.81, 43,753.57 and 14,369.81 is: 21,560.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,160.81 : 43,753.57 = 14,369.81 : x
  2. Step 2: Convert to fraction form
    29,160.81/43,753.57 = 14,369.81/x
  3. Step 3: Cross multiply
    29,160.81x = 43,753.57 × 14,369.81
  4. Step 4: Simplify right side
    29,160.81x = 628,730,233.03
  5. Step 5: Solve for x
    x = 628,730,233.03/29,160.81
  6. Step 6: Final answer
    x = 21,560.79

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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.