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Finding the Fourth Proportional to 11,480.80, 17,207.36 and 5,931.12

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Solution

The fourth proportional to 11,480.80, 17,207.36 and 5,931.12 is: 8,889.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,480.80 : 17,207.36 = 5,931.12 : x
  2. Step 2: Convert to fraction form
    11,480.80/17,207.36 = 5,931.12/x
  3. Step 3: Cross multiply
    11,480.80x = 17,207.36 × 5,931.12
  4. Step 4: Simplify right side
    11,480.80x = 102,058,917.04
  5. Step 5: Solve for x
    x = 102,058,917.04/11,480.80
  6. Step 6: Final answer
    x = 8,889.53

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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.