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Finding the Fourth Proportional to 15,311.62, 22,945.50 and 8,724.19

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Solution

The fourth proportional to 15,311.62, 22,945.50 and 8,724.19 is: 13,073.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,311.62 : 22,945.50 = 8,724.19 : x
  2. Step 2: Convert to fraction form
    15,311.62/22,945.50 = 8,724.19/x
  3. Step 3: Cross multiply
    15,311.62x = 22,945.50 × 8,724.19
  4. Step 4: Simplify right side
    15,311.62x = 200,180,901.65
  5. Step 5: Solve for x
    x = 200,180,901.65/15,311.62
  6. Step 6: Final answer
    x = 13,073.79

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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.