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Finding the Fourth Proportional to 69,882.94, 96,433.58 and 39,668.88

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Solution

The fourth proportional to 69,882.94, 96,433.58 and 39,668.88 is: 54,740.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,882.94 : 96,433.58 = 39,668.88 : x
  2. Step 2: Convert to fraction form
    69,882.94/96,433.58 = 39,668.88/x
  3. Step 3: Cross multiply
    69,882.94x = 96,433.58 × 39,668.88
  4. Step 4: Simplify right side
    69,882.94x = 3,825,412,112.99
  5. Step 5: Solve for x
    x = 3,825,412,112.99/69,882.94
  6. Step 6: Final answer
    x = 54,740.29

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1.5x scale

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.