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Finding the Fourth Proportional to 15,040.17, 20,745.81 and 12,063.15

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Solution

The fourth proportional to 15,040.17, 20,745.81 and 12,063.15 is: 16,639.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,040.17 : 20,745.81 = 12,063.15 : x
  2. Step 2: Convert to fraction form
    15,040.17/20,745.81 = 12,063.15/x
  3. Step 3: Cross multiply
    15,040.17x = 20,745.81 × 12,063.15
  4. Step 4: Simplify right side
    15,040.17x = 250,259,817.90
  5. Step 5: Solve for x
    x = 250,259,817.90/15,040.17
  6. Step 6: Final answer
    x = 16,639.43

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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.