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Finding the Fourth Proportional to 15,115.56, 22,681.02 and 6,793.90

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Solution

The fourth proportional to 15,115.56, 22,681.02 and 6,793.90 is: 10,194.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,115.56 : 22,681.02 = 6,793.90 : x
  2. Step 2: Convert to fraction form
    15,115.56/22,681.02 = 6,793.90/x
  3. Step 3: Cross multiply
    15,115.56x = 22,681.02 × 6,793.90
  4. Step 4: Simplify right side
    15,115.56x = 154,092,581.78
  5. Step 5: Solve for x
    x = 154,092,581.78/15,115.56
  6. Step 6: Final answer
    x = 10,194.30

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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.