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Finding the Fourth Proportional to 8,340.61, 12,512.96 and 2,497.22

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Solution

The fourth proportional to 8,340.61, 12,512.96 and 2,497.22 is: 3,746.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,340.61 : 12,512.96 = 2,497.22 : x
  2. Step 2: Convert to fraction form
    8,340.61/12,512.96 = 2,497.22/x
  3. Step 3: Cross multiply
    8,340.61x = 12,512.96 × 2,497.22
  4. Step 4: Simplify right side
    8,340.61x = 31,247,613.97
  5. Step 5: Solve for x
    x = 31,247,613.97/8,340.61
  6. Step 6: Final answer
    x = 3,746.44

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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.