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Finding the Fourth Proportional to 47,347.89, 71,033.40 and 15,757.89

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Solution

The fourth proportional to 47,347.89, 71,033.40 and 15,757.89 is: 23,640.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,347.89 : 71,033.40 = 15,757.89 : x
  2. Step 2: Convert to fraction form
    47,347.89/71,033.40 = 15,757.89/x
  3. Step 3: Cross multiply
    47,347.89x = 71,033.40 × 15,757.89
  4. Step 4: Simplify right side
    47,347.89x = 1,119,336,503.53
  5. Step 5: Solve for x
    x = 1,119,336,503.53/47,347.89
  6. Step 6: Final answer
    x = 23,640.68

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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.