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Finding the Fourth Proportional to 15,129.97, 22,699.80 and 6,249.48

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Solution

The fourth proportional to 15,129.97, 22,699.80 and 6,249.48 is: 9,376.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,129.97 : 22,699.80 = 6,249.48 : x
  2. Step 2: Convert to fraction form
    15,129.97/22,699.80 = 6,249.48/x
  3. Step 3: Cross multiply
    15,129.97x = 22,699.80 × 6,249.48
  4. Step 4: Simplify right side
    15,129.97x = 141,861,946.10
  5. Step 5: Solve for x
    x = 141,861,946.10/15,129.97
  6. Step 6: Final answer
    x = 9,376.22

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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.