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Finding the Fourth Proportional to 8,892.34, 13,339.17 and 2,651.87

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Solution

The fourth proportional to 8,892.34, 13,339.17 and 2,651.87 is: 3,978.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,892.34 : 13,339.17 = 2,651.87 : x
  2. Step 2: Convert to fraction form
    8,892.34/13,339.17 = 2,651.87/x
  3. Step 3: Cross multiply
    8,892.34x = 13,339.17 × 2,651.87
  4. Step 4: Simplify right side
    8,892.34x = 35,373,744.75
  5. Step 5: Solve for x
    x = 35,373,744.75/8,892.34
  6. Step 6: Final answer
    x = 3,978.00

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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.