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Finding the Fourth Proportional to 8,920.68, 13,372.32 and 4,301.16

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Solution

The fourth proportional to 8,920.68, 13,372.32 and 4,301.16 is: 6,447.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,920.68 : 13,372.32 = 4,301.16 : x
  2. Step 2: Convert to fraction form
    8,920.68/13,372.32 = 4,301.16/x
  3. Step 3: Cross multiply
    8,920.68x = 13,372.32 × 4,301.16
  4. Step 4: Simplify right side
    8,920.68x = 57,516,487.89
  5. Step 5: Solve for x
    x = 57,516,487.89/8,920.68
  6. Step 6: Final answer
    x = 6,447.55

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.