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Finding the Fourth Proportional to 61,972.70, 85,517.48 and 35,119.43

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Solution

The fourth proportional to 61,972.70, 85,517.48 and 35,119.43 is: 48,462.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,972.70 : 85,517.48 = 35,119.43 : x
  2. Step 2: Convert to fraction form
    61,972.70/85,517.48 = 35,119.43/x
  3. Step 3: Cross multiply
    61,972.70x = 85,517.48 × 35,119.43
  4. Step 4: Simplify right side
    61,972.70x = 3,003,325,152.64
  5. Step 5: Solve for x
    x = 3,003,325,152.64/61,972.70
  6. Step 6: Final answer
    x = 48,462.07

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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.