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Finding the Fourth Proportional to 8,654.87, 11,941.09 and 5,294.18

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Solution

The fourth proportional to 8,654.87, 11,941.09 and 5,294.18 is: 7,304.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,654.87 : 11,941.09 = 5,294.18 : x
  2. Step 2: Convert to fraction form
    8,654.87/11,941.09 = 5,294.18/x
  3. Step 3: Cross multiply
    8,654.87x = 11,941.09 × 5,294.18
  4. Step 4: Simplify right side
    8,654.87x = 63,218,296.47
  5. Step 5: Solve for x
    x = 63,218,296.47/8,654.87
  6. Step 6: Final answer
    x = 7,304.36

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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.