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Finding the Fourth Proportional to 66,757, 92,126.10 and 36,949

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Solution

The fourth proportional to 66,757, 92,126.10 and 36,949 is: 50,990.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,757 : 92,126.10 = 36,949 : x
  2. Step 2: Convert to fraction form
    66,757/92,126.10 = 36,949/x
  3. Step 3: Cross multiply
    66,757x = 92,126.10 × 36,949
  4. Step 4: Simplify right side
    66,757x = 3,403,967,268.90
  5. Step 5: Solve for x
    x = 3,403,967,268.90/66,757
  6. Step 6: Final answer
    x = 50,990.42

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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.