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Finding the Fourth Proportional to 7,601.03, 11,400.10 and 3,221.56

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Solution

The fourth proportional to 7,601.03, 11,400.10 and 3,221.56 is: 4,831.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,601.03 : 11,400.10 = 3,221.56 : x
  2. Step 2: Convert to fraction form
    7,601.03/11,400.10 = 3,221.56/x
  3. Step 3: Cross multiply
    7,601.03x = 11,400.10 × 3,221.56
  4. Step 4: Simplify right side
    7,601.03x = 36,726,106.16
  5. Step 5: Solve for x
    x = 36,726,106.16/7,601.03
  6. Step 6: Final answer
    x = 4,831.73

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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.