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Finding the Fourth Proportional to 66,796.80, 92,177.28 and 38,497.92

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Solution

The fourth proportional to 66,796.80, 92,177.28 and 38,497.92 is: 53,125.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,796.80 : 92,177.28 = 38,497.92 : x
  2. Step 2: Convert to fraction form
    66,796.80/92,177.28 = 38,497.92/x
  3. Step 3: Cross multiply
    66,796.80x = 92,177.28 × 38,497.92
  4. Step 4: Simplify right side
    66,796.80x = 3,548,633,551.26
  5. Step 5: Solve for x
    x = 3,548,633,551.26/66,796.80
  6. Step 6: Final answer
    x = 53,125.80

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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.