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Finding the Fourth Proportional to 79,474.52, 119,211.83 and 20,310.24

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Solution

The fourth proportional to 79,474.52, 119,211.83 and 20,310.24 is: 30,465.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,474.52 : 119,211.83 = 20,310.24 : x
  2. Step 2: Convert to fraction form
    79,474.52/119,211.83 = 20,310.24/x
  3. Step 3: Cross multiply
    79,474.52x = 119,211.83 × 20,310.24
  4. Step 4: Simplify right side
    79,474.52x = 2,421,220,878.14
  5. Step 5: Solve for x
    x = 2,421,220,878.14/79,474.52
  6. Step 6: Final answer
    x = 30,465.37

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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.