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Finding the Fourth Proportional to 61,776.69, 85,251.20 and 34,552.49

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Solution

The fourth proportional to 61,776.69, 85,251.20 and 34,552.49 is: 47,682.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,776.69 : 85,251.20 = 34,552.49 : x
  2. Step 2: Convert to fraction form
    61,776.69/85,251.20 = 34,552.49/x
  3. Step 3: Cross multiply
    61,776.69x = 85,251.20 × 34,552.49
  4. Step 4: Simplify right side
    61,776.69x = 2,945,640,636.47
  5. Step 5: Solve for x
    x = 2,945,640,636.47/61,776.69
  6. Step 6: Final answer
    x = 47,682.07

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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.