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Finding the Fourth Proportional to 66,915.38, 92,344.92 and 37,841.42

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Solution

The fourth proportional to 66,915.38, 92,344.92 and 37,841.42 is: 52,222.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,915.38 : 92,344.92 = 37,841.42 : x
  2. Step 2: Convert to fraction form
    66,915.38/92,344.92 = 37,841.42/x
  3. Step 3: Cross multiply
    66,915.38x = 92,344.92 × 37,841.42
  4. Step 4: Simplify right side
    66,915.38x = 3,494,462,902.59
  5. Step 5: Solve for x
    x = 3,494,462,902.59/66,915.38
  6. Step 6: Final answer
    x = 52,222.12

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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.