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Finding the Fourth Proportional to 8,594.90, 12,892.68 and 2,672.40

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Solution

The fourth proportional to 8,594.90, 12,892.68 and 2,672.40 is: 4,008.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,594.90 : 12,892.68 = 2,672.40 : x
  2. Step 2: Convert to fraction form
    8,594.90/12,892.68 = 2,672.40/x
  3. Step 3: Cross multiply
    8,594.90x = 12,892.68 × 2,672.40
  4. Step 4: Simplify right side
    8,594.90x = 34,454,398.03
  5. Step 5: Solve for x
    x = 34,454,398.03/8,594.90
  6. Step 6: Final answer
    x = 4,008.70

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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.