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Finding the Fourth Proportional to 8,042.90, 12,062.55 and 5,288.90

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Solution

The fourth proportional to 8,042.90, 12,062.55 and 5,288.90 is: 7,932.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,042.90 : 12,062.55 = 5,288.90 : x
  2. Step 2: Convert to fraction form
    8,042.90/12,062.55 = 5,288.90/x
  3. Step 3: Cross multiply
    8,042.90x = 12,062.55 × 5,288.90
  4. Step 4: Simplify right side
    8,042.90x = 63,797,620.70
  5. Step 5: Solve for x
    x = 63,797,620.70/8,042.90
  6. Step 6: Final answer
    x = 7,932.17

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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.