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Finding the Fourth Proportional to 15,737.11, 23,589.13 and 7,929.55

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Solution

The fourth proportional to 15,737.11, 23,589.13 and 7,929.55 is: 11,885.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,737.11 : 23,589.13 = 7,929.55 : x
  2. Step 2: Convert to fraction form
    15,737.11/23,589.13 = 7,929.55/x
  3. Step 3: Cross multiply
    15,737.11x = 23,589.13 × 7,929.55
  4. Step 4: Simplify right side
    15,737.11x = 187,051,185.79
  5. Step 5: Solve for x
    x = 187,051,185.79/15,737.11
  6. Step 6: Final answer
    x = 11,885.99

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1.5x scale

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.