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Finding the Fourth Proportional to 82,668.96, 124,022.88 and 25,740.24

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Solution

The fourth proportional to 82,668.96, 124,022.88 and 25,740.24 is: 38,616.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,668.96 : 124,022.88 = 25,740.24 : x
  2. Step 2: Convert to fraction form
    82,668.96/124,022.88 = 25,740.24/x
  3. Step 3: Cross multiply
    82,668.96x = 124,022.88 × 25,740.24
  4. Step 4: Simplify right side
    82,668.96x = 3,192,378,696.69
  5. Step 5: Solve for x
    x = 3,192,378,696.69/82,668.96
  6. Step 6: Final answer
    x = 38,616.41

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1.5x scale

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.