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Finding the Fourth Proportional to 8,862.16, 13,294.32 and 3,671.68

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Solution

The fourth proportional to 8,862.16, 13,294.32 and 3,671.68 is: 5,507.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,862.16 : 13,294.32 = 3,671.68 : x
  2. Step 2: Convert to fraction form
    8,862.16/13,294.32 = 3,671.68/x
  3. Step 3: Cross multiply
    8,862.16x = 13,294.32 × 3,671.68
  4. Step 4: Simplify right side
    8,862.16x = 48,812,488.86
  5. Step 5: Solve for x
    x = 48,812,488.86/8,862.16
  6. Step 6: Final answer
    x = 5,507.97

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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.