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Finding the Fourth Proportional to 69,244.85, 103,881.24 and 21,867.34

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Solution

The fourth proportional to 69,244.85, 103,881.24 and 21,867.34 is: 32,805.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,244.85 : 103,881.24 = 21,867.34 : x
  2. Step 2: Convert to fraction form
    69,244.85/103,881.24 = 21,867.34/x
  3. Step 3: Cross multiply
    69,244.85x = 103,881.24 × 21,867.34
  4. Step 4: Simplify right side
    69,244.85x = 2,271,606,394.70
  5. Step 5: Solve for x
    x = 2,271,606,394.70/69,244.85
  6. Step 6: Final answer
    x = 32,805.42

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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.