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Finding the Fourth Proportional to 6,615.72, 9,923.60 and 2,233.28

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Solution

The fourth proportional to 6,615.72, 9,923.60 and 2,233.28 is: 3,349.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,615.72 : 9,923.60 = 2,233.28 : x
  2. Step 2: Convert to fraction form
    6,615.72/9,923.60 = 2,233.28/x
  3. Step 3: Cross multiply
    6,615.72x = 9,923.60 × 2,233.28
  4. Step 4: Simplify right side
    6,615.72x = 22,162,177.41
  5. Step 5: Solve for x
    x = 22,162,177.41/6,615.72
  6. Step 6: Final answer
    x = 3,349.93

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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.