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Finding the Fourth Proportional to 66,877, 92,266.60 and 38,175.95

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Solution

The fourth proportional to 66,877, 92,266.60 and 38,175.95 is: 52,669.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,877 : 92,266.60 = 38,175.95 : x
  2. Step 2: Convert to fraction form
    66,877/92,266.60 = 38,175.95/x
  3. Step 3: Cross multiply
    66,877x = 92,266.60 × 38,175.95
  4. Step 4: Simplify right side
    66,877x = 3,522,365,108.27
  5. Step 5: Solve for x
    x = 3,522,365,108.27/66,877
  6. Step 6: Final answer
    x = 52,669.30

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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.