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Finding the Fourth Proportional to 69,012, 103,456.54 and 26,882.23

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Solution

The fourth proportional to 69,012, 103,456.54 and 26,882.23 is: 40,299.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,012 : 103,456.54 = 26,882.23 : x
  2. Step 2: Convert to fraction form
    69,012/103,456.54 = 26,882.23/x
  3. Step 3: Cross multiply
    69,012x = 103,456.54 × 26,882.23
  4. Step 4: Simplify right side
    69,012x = 2,781,142,472.23
  5. Step 5: Solve for x
    x = 2,781,142,472.23/69,012
  6. Step 6: Final answer
    x = 40,299.40

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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.