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Finding the Fourth Proportional to 61,887.54, 85,400.93 and 36,398.36

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Solution

The fourth proportional to 61,887.54, 85,400.93 and 36,398.36 is: 50,227.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,887.54 : 85,400.93 = 36,398.36 : x
  2. Step 2: Convert to fraction form
    61,887.54/85,400.93 = 36,398.36/x
  3. Step 3: Cross multiply
    61,887.54x = 85,400.93 × 36,398.36
  4. Step 4: Simplify right side
    61,887.54x = 3,108,454,098.97
  5. Step 5: Solve for x
    x = 3,108,454,098.97/61,887.54
  6. Step 6: Final answer
    x = 50,227.46

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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.