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Finding the Fourth Proportional to 71,208.16, 106,819.56 and 26,872.24

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Solution

The fourth proportional to 71,208.16, 106,819.56 and 26,872.24 is: 40,311.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,208.16 : 106,819.56 = 26,872.24 : x
  2. Step 2: Convert to fraction form
    71,208.16/106,819.56 = 26,872.24/x
  3. Step 3: Cross multiply
    71,208.16x = 106,819.56 × 26,872.24
  4. Step 4: Simplify right side
    71,208.16x = 2,870,480,853.01
  5. Step 5: Solve for x
    x = 2,870,480,853.01/71,208.16
  6. Step 6: Final answer
    x = 40,311.12

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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.