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Finding the Fourth Proportional to 8,497.60, 12,721.77 and 5,532.85

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Solution

The fourth proportional to 8,497.60, 12,721.77 and 5,532.85 is: 8,283.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,497.60 : 12,721.77 = 5,532.85 : x
  2. Step 2: Convert to fraction form
    8,497.60/12,721.77 = 5,532.85/x
  3. Step 3: Cross multiply
    8,497.60x = 12,721.77 × 5,532.85
  4. Step 4: Simplify right side
    8,497.60x = 70,387,645.14
  5. Step 5: Solve for x
    x = 70,387,645.14/8,497.60
  6. Step 6: Final answer
    x = 8,283.24

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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.