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Finding the Fourth Proportional to 8,248.52, 12,374.32 and 2,702.20

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Solution

The fourth proportional to 8,248.52, 12,374.32 and 2,702.20 is: 4,053.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,248.52 : 12,374.32 = 2,702.20 : x
  2. Step 2: Convert to fraction form
    8,248.52/12,374.32 = 2,702.20/x
  3. Step 3: Cross multiply
    8,248.52x = 12,374.32 × 2,702.20
  4. Step 4: Simplify right side
    8,248.52x = 33,437,860.68
  5. Step 5: Solve for x
    x = 33,437,860.68/8,248.52
  6. Step 6: Final answer
    x = 4,053.80

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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.