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Finding the Fourth Proportional to 61,518.80, 84,895.92 and 33,224.49

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Solution

The fourth proportional to 61,518.80, 84,895.92 and 33,224.49 is: 45,849.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,518.80 : 84,895.92 = 33,224.49 : x
  2. Step 2: Convert to fraction form
    61,518.80/84,895.92 = 33,224.49/x
  3. Step 3: Cross multiply
    61,518.80x = 84,895.92 × 33,224.49
  4. Step 4: Simplify right side
    61,518.80x = 2,820,623,645.08
  5. Step 5: Solve for x
    x = 2,820,623,645.08/61,518.80
  6. Step 6: Final answer
    x = 45,849.79

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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.