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Finding the Fourth Proportional to 29,708.78, 44,497.17 and 21,259.53

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Solution

The fourth proportional to 29,708.78, 44,497.17 and 21,259.53 is: 31,842.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,708.78 : 44,497.17 = 21,259.53 : x
  2. Step 2: Convert to fraction form
    29,708.78/44,497.17 = 21,259.53/x
  3. Step 3: Cross multiply
    29,708.78x = 44,497.17 × 21,259.53
  4. Step 4: Simplify right side
    29,708.78x = 945,988,920.53
  5. Step 5: Solve for x
    x = 945,988,920.53/29,708.78
  6. Step 6: Final answer
    x = 31,842.07

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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.