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Finding the Fourth Proportional to 8,932.53, 12,318.13 and 8,226.21

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Solution

The fourth proportional to 8,932.53, 12,318.13 and 8,226.21 is: 11,344.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,932.53 : 12,318.13 = 8,226.21 : x
  2. Step 2: Convert to fraction form
    8,932.53/12,318.13 = 8,226.21/x
  3. Step 3: Cross multiply
    8,932.53x = 12,318.13 × 8,226.21
  4. Step 4: Simplify right side
    8,932.53x = 101,331,483.06
  5. Step 5: Solve for x
    x = 101,331,483.06/8,932.53
  6. Step 6: Final answer
    x = 11,344.10

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.