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Finding the Fourth Proportional to 61,351.46, 84,659.18 and 35,863.80

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Solution

The fourth proportional to 61,351.46, 84,659.18 and 35,863.80 is: 49,488.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,351.46 : 84,659.18 = 35,863.80 : x
  2. Step 2: Convert to fraction form
    61,351.46/84,659.18 = 35,863.80/x
  3. Step 3: Cross multiply
    61,351.46x = 84,659.18 × 35,863.80
  4. Step 4: Simplify right side
    61,351.46x = 3,036,199,899.68
  5. Step 5: Solve for x
    x = 3,036,199,899.68/61,351.46
  6. Step 6: Final answer
    x = 49,488.63

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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.