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Finding the Fourth Proportional to 55,666.68, 83,481.48 and 25,668.65

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Solution

The fourth proportional to 55,666.68, 83,481.48 and 25,668.65 is: 38,494.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,666.68 : 83,481.48 = 25,668.65 : x
  2. Step 2: Convert to fraction form
    55,666.68/83,481.48 = 25,668.65/x
  3. Step 3: Cross multiply
    55,666.68x = 83,481.48 × 25,668.65
  4. Step 4: Simplify right side
    55,666.68x = 2,142,856,474.19
  5. Step 5: Solve for x
    x = 2,142,856,474.19/55,666.68
  6. Step 6: Final answer
    x = 38,494.42

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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.