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Finding the Fourth Proportional to 7,144.01, 10,722.93 and 3,448.83

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Solution

The fourth proportional to 7,144.01, 10,722.93 and 3,448.83 is: 5,176.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,144.01 : 10,722.93 = 3,448.83 : x
  2. Step 2: Convert to fraction form
    7,144.01/10,722.93 = 3,448.83/x
  3. Step 3: Cross multiply
    7,144.01x = 10,722.93 × 3,448.83
  4. Step 4: Simplify right side
    7,144.01x = 36,981,562.67
  5. Step 5: Solve for x
    x = 36,981,562.67/7,144.01
  6. Step 6: Final answer
    x = 5,176.58

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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.