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Finding the Fourth Proportional to 61,512.98, 84,887.90 and 33,218.66

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Solution

The fourth proportional to 61,512.98, 84,887.90 and 33,218.66 is: 45,841.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,512.98 : 84,887.90 = 33,218.66 : x
  2. Step 2: Convert to fraction form
    61,512.98/84,887.90 = 33,218.66/x
  3. Step 3: Cross multiply
    61,512.98x = 84,887.90 × 33,218.66
  4. Step 4: Simplify right side
    61,512.98x = 2,819,862,583.48
  5. Step 5: Solve for x
    x = 2,819,862,583.48/61,512.98
  6. Step 6: Final answer
    x = 45,841.75

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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.