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Finding the Fourth Proportional to 61,897.87, 85,423.56 and 34,676.33

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Solution

The fourth proportional to 61,897.87, 85,423.56 and 34,676.33 is: 47,855.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,897.87 : 85,423.56 = 34,676.33 : x
  2. Step 2: Convert to fraction form
    61,897.87/85,423.56 = 34,676.33/x
  3. Step 3: Cross multiply
    61,897.87x = 85,423.56 × 34,676.33
  4. Step 4: Simplify right side
    61,897.87x = 2,962,175,556.33
  5. Step 5: Solve for x
    x = 2,962,175,556.33/61,897.87
  6. Step 6: Final answer
    x = 47,855.86

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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.