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Finding the Fourth Proportional to 39,873.54, 55,023.80 and 22,865.97

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Solution

The fourth proportional to 39,873.54, 55,023.80 and 22,865.97 is: 31,554.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,873.54 : 55,023.80 = 22,865.97 : x
  2. Step 2: Convert to fraction form
    39,873.54/55,023.80 = 22,865.97/x
  3. Step 3: Cross multiply
    39,873.54x = 55,023.80 × 22,865.97
  4. Step 4: Simplify right side
    39,873.54x = 1,258,172,445.76
  5. Step 5: Solve for x
    x = 1,258,172,445.76/39,873.54
  6. Step 6: Final answer
    x = 31,554.07

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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.