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Finding the Fourth Proportional to 12,247.98, 18,372.12 and 3,482.88

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Solution

The fourth proportional to 12,247.98, 18,372.12 and 3,482.88 is: 5,224.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,247.98 : 18,372.12 = 3,482.88 : x
  2. Step 2: Convert to fraction form
    12,247.98/18,372.12 = 3,482.88/x
  3. Step 3: Cross multiply
    12,247.98x = 18,372.12 × 3,482.88
  4. Step 4: Simplify right side
    12,247.98x = 63,987,889.31
  5. Step 5: Solve for x
    x = 63,987,889.31/12,247.98
  6. Step 6: Final answer
    x = 5,224.36

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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.