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Finding the Fourth Proportional to 13,002.44, 19,370.62 and 12,375.48

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Solution

The fourth proportional to 13,002.44, 19,370.62 and 12,375.48 is: 18,436.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,002.44 : 19,370.62 = 12,375.48 : x
  2. Step 2: Convert to fraction form
    13,002.44/19,370.62 = 12,375.48/x
  3. Step 3: Cross multiply
    13,002.44x = 19,370.62 × 12,375.48
  4. Step 4: Simplify right side
    13,002.44x = 239,720,720.40
  5. Step 5: Solve for x
    x = 239,720,720.40/13,002.44
  6. Step 6: Final answer
    x = 18,436.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.