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Finding the Fourth Proportional to 11,551.64, 17,327.20 and 3,760.40

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Solution

The fourth proportional to 11,551.64, 17,327.20 and 3,760.40 is: 5,640.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,551.64 : 17,327.20 = 3,760.40 : x
  2. Step 2: Convert to fraction form
    11,551.64/17,327.20 = 3,760.40/x
  3. Step 3: Cross multiply
    11,551.64x = 17,327.20 × 3,760.40
  4. Step 4: Simplify right side
    11,551.64x = 65,157,202.88
  5. Step 5: Solve for x
    x = 65,157,202.88/11,551.64
  6. Step 6: Final answer
    x = 5,640.52

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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.