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Finding the Fourth Proportional to 8,695.17, 11,996.50 and 4,917.97

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Solution

The fourth proportional to 8,695.17, 11,996.50 and 4,917.97 is: 6,785.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,695.17 : 11,996.50 = 4,917.97 : x
  2. Step 2: Convert to fraction form
    8,695.17/11,996.50 = 4,917.97/x
  3. Step 3: Cross multiply
    8,695.17x = 11,996.50 × 4,917.97
  4. Step 4: Simplify right side
    8,695.17x = 58,998,427.11
  5. Step 5: Solve for x
    x = 58,998,427.11/8,695.17
  6. Step 6: Final answer
    x = 6,785.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.