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Finding the Fourth Proportional to 59,422.80, 81,990.16 and 33,921.04

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Solution

The fourth proportional to 59,422.80, 81,990.16 and 33,921.04 is: 46,803.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,422.80 : 81,990.16 = 33,921.04 : x
  2. Step 2: Convert to fraction form
    59,422.80/81,990.16 = 33,921.04/x
  3. Step 3: Cross multiply
    59,422.80x = 81,990.16 × 33,921.04
  4. Step 4: Simplify right side
    59,422.80x = 2,781,191,496.97
  5. Step 5: Solve for x
    x = 2,781,191,496.97/59,422.80
  6. Step 6: Final answer
    x = 46,803.44

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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.