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Finding the Fourth Proportional to 66,906.61, 92,330.49 and 36,691.32

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Solution

The fourth proportional to 66,906.61, 92,330.49 and 36,691.32 is: 50,633.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,906.61 : 92,330.49 = 36,691.32 : x
  2. Step 2: Convert to fraction form
    66,906.61/92,330.49 = 36,691.32/x
  3. Step 3: Cross multiply
    66,906.61x = 92,330.49 × 36,691.32
  4. Step 4: Simplify right side
    66,906.61x = 3,387,727,554.35
  5. Step 5: Solve for x
    x = 3,387,727,554.35/66,906.61
  6. Step 6: Final answer
    x = 50,633.68

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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.