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Finding the Fourth Proportional to 8,542.71, 12,814.15 and 2,996.19

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Solution

The fourth proportional to 8,542.71, 12,814.15 and 2,996.19 is: 4,494.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,542.71 : 12,814.15 = 2,996.19 : x
  2. Step 2: Convert to fraction form
    8,542.71/12,814.15 = 2,996.19/x
  3. Step 3: Cross multiply
    8,542.71x = 12,814.15 × 2,996.19
  4. Step 4: Simplify right side
    8,542.71x = 38,393,628.09
  5. Step 5: Solve for x
    x = 38,393,628.09/8,542.71
  6. Step 6: Final answer
    x = 4,494.31

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Double scale
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Similar ratio
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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.