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Finding the Fourth Proportional to 61,881.75, 85,401.03 and 35,024.16

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Solution

The fourth proportional to 61,881.75, 85,401.03 and 35,024.16 is: 48,335.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,881.75 : 85,401.03 = 35,024.16 : x
  2. Step 2: Convert to fraction form
    61,881.75/85,401.03 = 35,024.16/x
  3. Step 3: Cross multiply
    61,881.75x = 85,401.03 × 35,024.16
  4. Step 4: Simplify right side
    61,881.75x = 2,991,099,338.88
  5. Step 5: Solve for x
    x = 2,991,099,338.88/61,881.75
  6. Step 6: Final answer
    x = 48,335.73

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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.