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Finding the Fourth Proportional to 11,452.40, 17,170.40 and 4,426.40

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Solution

The fourth proportional to 11,452.40, 17,170.40 and 4,426.40 is: 6,636.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,452.40 : 17,170.40 = 4,426.40 : x
  2. Step 2: Convert to fraction form
    11,452.40/17,170.40 = 4,426.40/x
  3. Step 3: Cross multiply
    11,452.40x = 17,170.40 × 4,426.40
  4. Step 4: Simplify right side
    11,452.40x = 76,003,058.56
  5. Step 5: Solve for x
    x = 76,003,058.56/11,452.40
  6. Step 6: Final answer
    x = 6,636.43

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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.