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Finding the Fourth Proportional to 55,469.97, 76,387.30 and 48,199

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Solution

The fourth proportional to 55,469.97, 76,387.30 and 48,199 is: 66,374.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,469.97 : 76,387.30 = 48,199 : x
  2. Step 2: Convert to fraction form
    55,469.97/76,387.30 = 48,199/x
  3. Step 3: Cross multiply
    55,469.97x = 76,387.30 × 48,199
  4. Step 4: Simplify right side
    55,469.97x = 3,681,791,472.70
  5. Step 5: Solve for x
    x = 3,681,791,472.70/55,469.97
  6. Step 6: Final answer
    x = 66,374.50

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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.