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Finding the Fourth Proportional to 66,804.59, 92,191.82 and 38,123.68

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Solution

The fourth proportional to 66,804.59, 92,191.82 and 38,123.68 is: 52,611.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,804.59 : 92,191.82 = 38,123.68 : x
  2. Step 2: Convert to fraction form
    66,804.59/92,191.82 = 38,123.68/x
  3. Step 3: Cross multiply
    66,804.59x = 92,191.82 × 38,123.68
  4. Step 4: Simplify right side
    66,804.59x = 3,514,691,444.30
  5. Step 5: Solve for x
    x = 3,514,691,444.30/66,804.59
  6. Step 6: Final answer
    x = 52,611.53

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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.