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Finding the Fourth Proportional to 8,663.31, 11,952 and 5,304.42

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Solution

The fourth proportional to 8,663.31, 11,952 and 5,304.42 is: 7,318.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,663.31 : 11,952 = 5,304.42 : x
  2. Step 2: Convert to fraction form
    8,663.31/11,952 = 5,304.42/x
  3. Step 3: Cross multiply
    8,663.31x = 11,952 × 5,304.42
  4. Step 4: Simplify right side
    8,663.31x = 63,398,427.84
  5. Step 5: Solve for x
    x = 63,398,427.84/8,663.31
  6. Step 6: Final answer
    x = 7,318.04

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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.