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Finding the Fourth Proportional to 69,967.50, 96,557.75 and 39,757.94

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Solution

The fourth proportional to 69,967.50, 96,557.75 and 39,757.94 is: 54,867.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,967.50 : 96,557.75 = 39,757.94 : x
  2. Step 2: Convert to fraction form
    69,967.50/96,557.75 = 39,757.94/x
  3. Step 3: Cross multiply
    69,967.50x = 96,557.75 × 39,757.94
  4. Step 4: Simplify right side
    69,967.50x = 3,838,937,231.04
  5. Step 5: Solve for x
    x = 3,838,937,231.04/69,967.50
  6. Step 6: Final answer
    x = 54,867.43

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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.