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Finding the Fourth Proportional to 39,866.88, 55,016.88 and 22,873.88

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Solution

The fourth proportional to 39,866.88, 55,016.88 and 22,873.88 is: 31,566.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,866.88 : 55,016.88 = 22,873.88 : x
  2. Step 2: Convert to fraction form
    39,866.88/55,016.88 = 22,873.88/x
  3. Step 3: Cross multiply
    39,866.88x = 55,016.88 × 22,873.88
  4. Step 4: Simplify right side
    39,866.88x = 1,258,449,511.09
  5. Step 5: Solve for x
    x = 1,258,449,511.09/39,866.88
  6. Step 6: Final answer
    x = 31,566.29

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1.5x scale

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.