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Finding the Fourth Proportional to 8,476.75, 12,716.54 and 2,632.20

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Solution

The fourth proportional to 8,476.75, 12,716.54 and 2,632.20 is: 3,948.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,476.75 : 12,716.54 = 2,632.20 : x
  2. Step 2: Convert to fraction form
    8,476.75/12,716.54 = 2,632.20/x
  3. Step 3: Cross multiply
    8,476.75x = 12,716.54 × 2,632.20
  4. Step 4: Simplify right side
    8,476.75x = 33,472,476.59
  5. Step 5: Solve for x
    x = 33,472,476.59/8,476.75
  6. Step 6: Final answer
    x = 3,948.74

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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.