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Finding the Fourth Proportional to 8,197.66, 12,308.76 and 4,691.62

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Solution

The fourth proportional to 8,197.66, 12,308.76 and 4,691.62 is: 7,044.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,197.66 : 12,308.76 = 4,691.62 : x
  2. Step 2: Convert to fraction form
    8,197.66/12,308.76 = 4,691.62/x
  3. Step 3: Cross multiply
    8,197.66x = 12,308.76 × 4,691.62
  4. Step 4: Simplify right side
    8,197.66x = 57,748,024.59
  5. Step 5: Solve for x
    x = 57,748,024.59/8,197.66
  6. Step 6: Final answer
    x = 7,044.45

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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.