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Finding the Fourth Proportional to 62,820.88, 94,246.78 and 31,245.90

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Solution

The fourth proportional to 62,820.88, 94,246.78 and 31,245.90 is: 46,876.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,820.88 : 94,246.78 = 31,245.90 : x
  2. Step 2: Convert to fraction form
    62,820.88/94,246.78 = 31,245.90/x
  3. Step 3: Cross multiply
    62,820.88x = 94,246.78 × 31,245.90
  4. Step 4: Simplify right side
    62,820.88x = 2,944,824,991.97
  5. Step 5: Solve for x
    x = 2,944,824,991.97/62,820.88
  6. Step 6: Final answer
    x = 46,876.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.