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Finding the Fourth Proportional to 18,672.16, 25,780.24 and 13,073.44

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Solution

The fourth proportional to 18,672.16, 25,780.24 and 13,073.44 is: 18,050.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,672.16 : 25,780.24 = 13,073.44 : x
  2. Step 2: Convert to fraction form
    18,672.16/25,780.24 = 13,073.44/x
  3. Step 3: Cross multiply
    18,672.16x = 25,780.24 × 13,073.44
  4. Step 4: Simplify right side
    18,672.16x = 337,036,420.83
  5. Step 5: Solve for x
    x = 337,036,420.83/18,672.16
  6. Step 6: Final answer
    x = 18,050.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.