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Finding the Fourth Proportional to 8,932.84, 12,318.55 and 8,226.52

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Solution

The fourth proportional to 8,932.84, 12,318.55 and 8,226.52 is: 11,344.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,932.84 : 12,318.55 = 8,226.52 : x
  2. Step 2: Convert to fraction form
    8,932.84/12,318.55 = 8,226.52/x
  3. Step 3: Cross multiply
    8,932.84x = 12,318.55 × 8,226.52
  4. Step 4: Simplify right side
    8,932.84x = 101,338,797.95
  5. Step 5: Solve for x
    x = 101,338,797.95/8,932.84
  6. Step 6: Final answer
    x = 11,344.52

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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.