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Finding the Fourth Proportional to 11,202.92, 15,453.54 and 7,003.88

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Solution

The fourth proportional to 11,202.92, 15,453.54 and 7,003.88 is: 9,661.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,202.92 : 15,453.54 = 7,003.88 : x
  2. Step 2: Convert to fraction form
    11,202.92/15,453.54 = 7,003.88/x
  3. Step 3: Cross multiply
    11,202.92x = 15,453.54 × 7,003.88
  4. Step 4: Simplify right side
    11,202.92x = 108,234,739.74
  5. Step 5: Solve for x
    x = 108,234,739.74/11,202.92
  6. Step 6: Final answer
    x = 9,661.30

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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.