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Finding the Fourth Proportional to 38,446.80, 57,670.20 and 10,366.80

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Solution

The fourth proportional to 38,446.80, 57,670.20 and 10,366.80 is: 15,550.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,446.80 : 57,670.20 = 10,366.80 : x
  2. Step 2: Convert to fraction form
    38,446.80/57,670.20 = 10,366.80/x
  3. Step 3: Cross multiply
    38,446.80x = 57,670.20 × 10,366.80
  4. Step 4: Simplify right side
    38,446.80x = 597,855,429.36
  5. Step 5: Solve for x
    x = 597,855,429.36/38,446.80
  6. Step 6: Final answer
    x = 15,550.20

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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.