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Finding the Fourth Proportional to 8,411.22, 12,619.17 and 7,493.13

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Solution

The fourth proportional to 8,411.22, 12,619.17 and 7,493.13 is: 11,241.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,411.22 : 12,619.17 = 7,493.13 : x
  2. Step 2: Convert to fraction form
    8,411.22/12,619.17 = 7,493.13/x
  3. Step 3: Cross multiply
    8,411.22x = 12,619.17 × 7,493.13
  4. Step 4: Simplify right side
    8,411.22x = 94,557,081.30
  5. Step 5: Solve for x
    x = 94,557,081.30/8,411.22
  6. Step 6: Final answer
    x = 11,241.78

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1.5x scale

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.