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Finding the Fourth Proportional to 8,476.92, 12,715.11 and 2,553.84

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Solution

The fourth proportional to 8,476.92, 12,715.11 and 2,553.84 is: 3,830.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,476.92 : 12,715.11 = 2,553.84 : x
  2. Step 2: Convert to fraction form
    8,476.92/12,715.11 = 2,553.84/x
  3. Step 3: Cross multiply
    8,476.92x = 12,715.11 × 2,553.84
  4. Step 4: Simplify right side
    8,476.92x = 32,472,356.52
  5. Step 5: Solve for x
    x = 32,472,356.52/8,476.92
  6. Step 6: Final answer
    x = 3,830.68

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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.