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Finding the Fourth Proportional to 61,422.48, 84,767.92 and 34,563.29

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Solution

The fourth proportional to 61,422.48, 84,767.92 and 34,563.29 is: 47,700.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,422.48 : 84,767.92 = 34,563.29 : x
  2. Step 2: Convert to fraction form
    61,422.48/84,767.92 = 34,563.29/x
  3. Step 3: Cross multiply
    61,422.48x = 84,767.92 × 34,563.29
  4. Step 4: Simplify right side
    61,422.48x = 2,929,858,201.66
  5. Step 5: Solve for x
    x = 2,929,858,201.66/61,422.48
  6. Step 6: Final answer
    x = 47,700.10

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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.