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Finding the Fourth Proportional to 58,710.75, 81,020.84 and 33,560.79

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Solution

The fourth proportional to 58,710.75, 81,020.84 and 33,560.79 is: 46,313.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,710.75 : 81,020.84 = 33,560.79 : x
  2. Step 2: Convert to fraction form
    58,710.75/81,020.84 = 33,560.79/x
  3. Step 3: Cross multiply
    58,710.75x = 81,020.84 × 33,560.79
  4. Step 4: Simplify right side
    58,710.75x = 2,719,123,229.06
  5. Step 5: Solve for x
    x = 2,719,123,229.06/58,710.75
  6. Step 6: Final answer
    x = 46,313.89

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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.