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Finding the Fourth Proportional to 5,005.61, 7,500.17 and 1,716.90

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Solution

The fourth proportional to 5,005.61, 7,500.17 and 1,716.90 is: 2,572.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,005.61 : 7,500.17 = 1,716.90 : x
  2. Step 2: Convert to fraction form
    5,005.61/7,500.17 = 1,716.90/x
  3. Step 3: Cross multiply
    5,005.61x = 7,500.17 × 1,716.90
  4. Step 4: Simplify right side
    5,005.61x = 12,877,046.17
  5. Step 5: Solve for x
    x = 12,877,046.17/5,005.61
  6. Step 6: Final answer
    x = 2,572.52

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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.