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Finding the Fourth Proportional to 36,261.88, 54,393.42 and 9,966.46

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Solution

The fourth proportional to 36,261.88, 54,393.42 and 9,966.46 is: 14,949.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,261.88 : 54,393.42 = 9,966.46 : x
  2. Step 2: Convert to fraction form
    36,261.88/54,393.42 = 9,966.46/x
  3. Step 3: Cross multiply
    36,261.88x = 54,393.42 × 9,966.46
  4. Step 4: Simplify right side
    36,261.88x = 542,109,844.69
  5. Step 5: Solve for x
    x = 542,109,844.69/36,261.88
  6. Step 6: Final answer
    x = 14,949.85

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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.