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Finding the Fourth Proportional to 61,816.84, 85,308.86 and 34,963.31

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Solution

The fourth proportional to 61,816.84, 85,308.86 and 34,963.31 is: 48,250.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,816.84 : 85,308.86 = 34,963.31 : x
  2. Step 2: Convert to fraction form
    61,816.84/85,308.86 = 34,963.31/x
  3. Step 3: Cross multiply
    61,816.84x = 85,308.86 × 34,963.31
  4. Step 4: Simplify right side
    61,816.84x = 2,982,680,418.61
  5. Step 5: Solve for x
    x = 2,982,680,418.61/61,816.84
  6. Step 6: Final answer
    x = 48,250.29

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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.