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Finding the Fourth Proportional to 79,501.62, 119,251.22 and 20,336.79

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Solution

The fourth proportional to 79,501.62, 119,251.22 and 20,336.79 is: 30,504.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,501.62 : 119,251.22 = 20,336.79 : x
  2. Step 2: Convert to fraction form
    79,501.62/119,251.22 = 20,336.79/x
  3. Step 3: Cross multiply
    79,501.62x = 119,251.22 × 20,336.79
  4. Step 4: Simplify right side
    79,501.62x = 2,425,186,916.70
  5. Step 5: Solve for x
    x = 2,425,186,916.70/79,501.62
  6. Step 6: Final answer
    x = 30,504.87

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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.