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Finding the Fourth Proportional to 3,712.74, 5,564.22 and 1,518.96

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Solution

The fourth proportional to 3,712.74, 5,564.22 and 1,518.96 is: 2,276.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.74 : 5,564.22 = 1,518.96 : x
  2. Step 2: Convert to fraction form
    3,712.74/5,564.22 = 1,518.96/x
  3. Step 3: Cross multiply
    3,712.74x = 5,564.22 × 1,518.96
  4. Step 4: Simplify right side
    3,712.74x = 8,451,827.61
  5. Step 5: Solve for x
    x = 8,451,827.61/3,712.74
  6. Step 6: Final answer
    x = 2,276.44

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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.