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Finding the Fourth Proportional to 76,329.39, 114,472.20 and 25,722.88

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Solution

The fourth proportional to 76,329.39, 114,472.20 and 25,722.88 is: 38,576.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,329.39 : 114,472.20 = 25,722.88 : x
  2. Step 2: Convert to fraction form
    76,329.39/114,472.20 = 25,722.88/x
  3. Step 3: Cross multiply
    76,329.39x = 114,472.20 × 25,722.88
  4. Step 4: Simplify right side
    76,329.39x = 2,944,554,663.94
  5. Step 5: Solve for x
    x = 2,944,554,663.94/76,329.39
  6. Step 6: Final answer
    x = 38,576.94

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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.