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Finding the Fourth Proportional to 60,876, 84,012.12 and 35,733.60

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Solution

The fourth proportional to 60,876, 84,012.12 and 35,733.60 is: 49,314.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,876 : 84,012.12 = 35,733.60 : x
  2. Step 2: Convert to fraction form
    60,876/84,012.12 = 35,733.60/x
  3. Step 3: Cross multiply
    60,876x = 84,012.12 × 35,733.60
  4. Step 4: Simplify right side
    60,876x = 3,002,055,491.23
  5. Step 5: Solve for x
    x = 3,002,055,491.23/60,876
  6. Step 6: Final answer
    x = 49,314.27

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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.