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Finding the Fourth Proportional to 69,762, 96,250.28 and 39,542.48

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Solution

The fourth proportional to 69,762, 96,250.28 and 39,542.48 is: 54,556.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,762 : 96,250.28 = 39,542.48 : x
  2. Step 2: Convert to fraction form
    69,762/96,250.28 = 39,542.48/x
  3. Step 3: Cross multiply
    69,762x = 96,250.28 × 39,542.48
  4. Step 4: Simplify right side
    69,762x = 3,805,974,771.89
  5. Step 5: Solve for x
    x = 3,805,974,771.89/69,762
  6. Step 6: Final answer
    x = 54,556.56

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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.