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Finding the Fourth Proportional to 69,254.76, 103,867.23 and 21,873.54

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Solution

The fourth proportional to 69,254.76, 103,867.23 and 21,873.54 is: 32,805.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,254.76 : 103,867.23 = 21,873.54 : x
  2. Step 2: Convert to fraction form
    69,254.76/103,867.23 = 21,873.54/x
  3. Step 3: Cross multiply
    69,254.76x = 103,867.23 × 21,873.54
  4. Step 4: Simplify right side
    69,254.76x = 2,271,944,010.09
  5. Step 5: Solve for x
    x = 2,271,944,010.09/69,254.76
  6. Step 6: Final answer
    x = 32,805.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.