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Finding the Fourth Proportional to 8,155.60, 12,233.40 and 7,248.40

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Solution

The fourth proportional to 8,155.60, 12,233.40 and 7,248.40 is: 10,872.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,155.60 : 12,233.40 = 7,248.40 : x
  2. Step 2: Convert to fraction form
    8,155.60/12,233.40 = 7,248.40/x
  3. Step 3: Cross multiply
    8,155.60x = 12,233.40 × 7,248.40
  4. Step 4: Simplify right side
    8,155.60x = 88,672,576.56
  5. Step 5: Solve for x
    x = 88,672,576.56/8,155.60
  6. Step 6: Final answer
    x = 10,872.60

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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.