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Finding the Fourth Proportional to 61,747.55, 85,210.52 and 34,889.49

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Solution

The fourth proportional to 61,747.55, 85,210.52 and 34,889.49 is: 48,146.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,747.55 : 85,210.52 = 34,889.49 : x
  2. Step 2: Convert to fraction form
    61,747.55/85,210.52 = 34,889.49/x
  3. Step 3: Cross multiply
    61,747.55x = 85,210.52 × 34,889.49
  4. Step 4: Simplify right side
    61,747.55x = 2,972,951,410.99
  5. Step 5: Solve for x
    x = 2,972,951,410.99/61,747.55
  6. Step 6: Final answer
    x = 48,146.87

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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.