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Finding the Fourth Proportional to 61,969.44, 85,517.54 and 35,111.90

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Solution

The fourth proportional to 61,969.44, 85,517.54 and 35,111.90 is: 48,454.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,969.44 : 85,517.54 = 35,111.90 : x
  2. Step 2: Convert to fraction form
    61,969.44/85,517.54 = 35,111.90/x
  3. Step 3: Cross multiply
    61,969.44x = 85,517.54 × 35,111.90
  4. Step 4: Simplify right side
    61,969.44x = 3,002,683,312.73
  5. Step 5: Solve for x
    x = 3,002,683,312.73/61,969.44
  6. Step 6: Final answer
    x = 48,454.26

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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.