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Finding the Fourth Proportional to 59,866.78, 82,619.84 and 33,009.21

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Solution

The fourth proportional to 59,866.78, 82,619.84 and 33,009.21 is: 45,554.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,866.78 : 82,619.84 = 33,009.21 : x
  2. Step 2: Convert to fraction form
    59,866.78/82,619.84 = 33,009.21/x
  3. Step 3: Cross multiply
    59,866.78x = 82,619.84 × 33,009.21
  4. Step 4: Simplify right side
    59,866.78x = 2,727,215,648.73
  5. Step 5: Solve for x
    x = 2,727,215,648.73/59,866.78
  6. Step 6: Final answer
    x = 45,554.74

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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.