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Finding the Fourth Proportional to 8,531.87, 12,798.88 and 3,337.07

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Solution

The fourth proportional to 8,531.87, 12,798.88 and 3,337.07 is: 5,006.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,531.87 : 12,798.88 = 3,337.07 : x
  2. Step 2: Convert to fraction form
    8,531.87/12,798.88 = 3,337.07/x
  3. Step 3: Cross multiply
    8,531.87x = 12,798.88 × 3,337.07
  4. Step 4: Simplify right side
    8,531.87x = 42,710,686.14
  5. Step 5: Solve for x
    x = 42,710,686.14/8,531.87
  6. Step 6: Final answer
    x = 5,006.02

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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.