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Finding the Fourth Proportional to 29,908.20, 44,819.10 and 20,663.40

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Solution

The fourth proportional to 29,908.20, 44,819.10 and 20,663.40 is: 30,965.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,908.20 : 44,819.10 = 20,663.40 : x
  2. Step 2: Convert to fraction form
    29,908.20/44,819.10 = 20,663.40/x
  3. Step 3: Cross multiply
    29,908.20x = 44,819.10 × 20,663.40
  4. Step 4: Simplify right side
    29,908.20x = 926,114,990.94
  5. Step 5: Solve for x
    x = 926,114,990.94/29,908.20
  6. Step 6: Final answer
    x = 30,965.25

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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.