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Finding the Fourth Proportional to 61,239.44, 84,515.30 and 34,383.70

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Solution

The fourth proportional to 61,239.44, 84,515.30 and 34,383.70 is: 47,452.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,239.44 : 84,515.30 = 34,383.70 : x
  2. Step 2: Convert to fraction form
    61,239.44/84,515.30 = 34,383.70/x
  3. Step 3: Cross multiply
    61,239.44x = 84,515.30 × 34,383.70
  4. Step 4: Simplify right side
    61,239.44x = 2,905,948,720.61
  5. Step 5: Solve for x
    x = 2,905,948,720.61/61,239.44
  6. Step 6: Final answer
    x = 47,452.24

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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.