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Finding the Fourth Proportional to 61,822.40, 85,313.90 and 34,963.90

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Solution

The fourth proportional to 61,822.40, 85,313.90 and 34,963.90 is: 48,249.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,822.40 : 85,313.90 = 34,963.90 : x
  2. Step 2: Convert to fraction form
    61,822.40/85,313.90 = 34,963.90/x
  3. Step 3: Cross multiply
    61,822.40x = 85,313.90 × 34,963.90
  4. Step 4: Simplify right side
    61,822.40x = 2,982,906,668.21
  5. Step 5: Solve for x
    x = 2,982,906,668.21/61,822.40
  6. Step 6: Final answer
    x = 48,249.61

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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.