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Finding the Fourth Proportional to 68,425.97, 94,426.88 and 38,211.84

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Solution

The fourth proportional to 68,425.97, 94,426.88 and 38,211.84 is: 52,731.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,425.97 : 94,426.88 = 38,211.84 : x
  2. Step 2: Convert to fraction form
    68,425.97/94,426.88 = 38,211.84/x
  3. Step 3: Cross multiply
    68,425.97x = 94,426.88 × 38,211.84
  4. Step 4: Simplify right side
    68,425.97x = 3,608,224,639.20
  5. Step 5: Solve for x
    x = 3,608,224,639.20/68,425.97
  6. Step 6: Final answer
    x = 52,731.80

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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.