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Finding the Fourth Proportional to 8,654.21, 11,943.05 and 5,296.97

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Solution

The fourth proportional to 8,654.21, 11,943.05 and 5,296.97 is: 7,309.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,654.21 : 11,943.05 = 5,296.97 : x
  2. Step 2: Convert to fraction form
    8,654.21/11,943.05 = 5,296.97/x
  3. Step 3: Cross multiply
    8,654.21x = 11,943.05 × 5,296.97
  4. Step 4: Simplify right side
    8,654.21x = 63,261,891.36
  5. Step 5: Solve for x
    x = 63,261,891.36/8,654.21
  6. Step 6: Final answer
    x = 7,309.96

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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.