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Finding the Fourth Proportional to 66,851.64, 92,257.82 and 38,175.97

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Solution

The fourth proportional to 66,851.64, 92,257.82 and 38,175.97 is: 52,684.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,851.64 : 92,257.82 = 38,175.97 : x
  2. Step 2: Convert to fraction form
    66,851.64/92,257.82 = 38,175.97/x
  3. Step 3: Cross multiply
    66,851.64x = 92,257.82 × 38,175.97
  4. Step 4: Simplify right side
    66,851.64x = 3,522,031,768.59
  5. Step 5: Solve for x
    x = 3,522,031,768.59/66,851.64
  6. Step 6: Final answer
    x = 52,684.30

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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.