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Finding the Fourth Proportional to 10,560.24, 15,801.36 and 8,694

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Solution

The fourth proportional to 10,560.24, 15,801.36 and 8,694 is: 13,008.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,560.24 : 15,801.36 = 8,694 : x
  2. Step 2: Convert to fraction form
    10,560.24/15,801.36 = 8,694/x
  3. Step 3: Cross multiply
    10,560.24x = 15,801.36 × 8,694
  4. Step 4: Simplify right side
    10,560.24x = 137,377,023.84
  5. Step 5: Solve for x
    x = 137,377,023.84/10,560.24
  6. Step 6: Final answer
    x = 13,008.89

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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.