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Finding the Fourth Proportional to 8,632.92, 12,934.98 and 8,308.92

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Solution

The fourth proportional to 8,632.92, 12,934.98 and 8,308.92 is: 12,449.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,632.92 : 12,934.98 = 8,308.92 : x
  2. Step 2: Convert to fraction form
    8,632.92/12,934.98 = 8,308.92/x
  3. Step 3: Cross multiply
    8,632.92x = 12,934.98 × 8,308.92
  4. Step 4: Simplify right side
    8,632.92x = 107,475,714.02
  5. Step 5: Solve for x
    x = 107,475,714.02/8,632.92
  6. Step 6: Final answer
    x = 12,449.52

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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.