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Finding the Fourth Proportional to 3,632.72, 5,012.80 and 2,060.80

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Solution

The fourth proportional to 3,632.72, 5,012.80 and 2,060.80 is: 2,843.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,632.72 : 5,012.80 = 2,060.80 : x
  2. Step 2: Convert to fraction form
    3,632.72/5,012.80 = 2,060.80/x
  3. Step 3: Cross multiply
    3,632.72x = 5,012.80 × 2,060.80
  4. Step 4: Simplify right side
    3,632.72x = 10,330,378.24
  5. Step 5: Solve for x
    x = 10,330,378.24/3,632.72
  6. Step 6: Final answer
    x = 2,843.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.