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Finding the Fourth Proportional to 66,881.85, 92,298.71 and 37,807.90

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Solution

The fourth proportional to 66,881.85, 92,298.71 and 37,807.90 is: 52,175.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,881.85 : 92,298.71 = 37,807.90 : x
  2. Step 2: Convert to fraction form
    66,881.85/92,298.71 = 37,807.90/x
  3. Step 3: Cross multiply
    66,881.85x = 92,298.71 × 37,807.90
  4. Step 4: Simplify right side
    66,881.85x = 3,489,620,397.81
  5. Step 5: Solve for x
    x = 3,489,620,397.81/66,881.85
  6. Step 6: Final answer
    x = 52,175.90

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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.