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Finding the Fourth Proportional to 61,610.16, 85,023.25 and 34,747.40

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Solution

The fourth proportional to 61,610.16, 85,023.25 and 34,747.40 is: 47,952.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,610.16 : 85,023.25 = 34,747.40 : x
  2. Step 2: Convert to fraction form
    61,610.16/85,023.25 = 34,747.40/x
  3. Step 3: Cross multiply
    61,610.16x = 85,023.25 × 34,747.40
  4. Step 4: Simplify right side
    61,610.16x = 2,954,336,877.05
  5. Step 5: Solve for x
    x = 2,954,336,877.05/61,610.16
  6. Step 6: Final answer
    x = 47,952.11

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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.