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Finding the Fourth Proportional to 61,604.57, 85,005.90 and 34,377.50

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Solution

The fourth proportional to 61,604.57, 85,005.90 and 34,377.50 is: 47,436.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,604.57 : 85,005.90 = 34,377.50 : x
  2. Step 2: Convert to fraction form
    61,604.57/85,005.90 = 34,377.50/x
  3. Step 3: Cross multiply
    61,604.57x = 85,005.90 × 34,377.50
  4. Step 4: Simplify right side
    61,604.57x = 2,922,289,902.22
  5. Step 5: Solve for x
    x = 2,922,289,902.22/61,604.57
  6. Step 6: Final answer
    x = 47,436.26

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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.