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Finding the Fourth Proportional to 15,157.92, 22,737.49 and 7,760.39

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Solution

The fourth proportional to 15,157.92, 22,737.49 and 7,760.39 is: 11,640.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,157.92 : 22,737.49 = 7,760.39 : x
  2. Step 2: Convert to fraction form
    15,157.92/22,737.49 = 7,760.39/x
  3. Step 3: Cross multiply
    15,157.92x = 22,737.49 × 7,760.39
  4. Step 4: Simplify right side
    15,157.92x = 176,451,751.22
  5. Step 5: Solve for x
    x = 176,451,751.22/15,157.92
  6. Step 6: Final answer
    x = 11,640.89

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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.