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Finding the Fourth Proportional to 61,220.80, 84,493.23 and 34,003

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Solution

The fourth proportional to 61,220.80, 84,493.23 and 34,003 is: 46,928.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,220.80 : 84,493.23 = 34,003 : x
  2. Step 2: Convert to fraction form
    61,220.80/84,493.23 = 34,003/x
  3. Step 3: Cross multiply
    61,220.80x = 84,493.23 × 34,003
  4. Step 4: Simplify right side
    61,220.80x = 2,873,023,299.69
  5. Step 5: Solve for x
    x = 2,873,023,299.69/61,220.80
  6. Step 6: Final answer
    x = 46,928.88

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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.