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Finding the Fourth Proportional to 11,672.10, 17,508.15 and 11,040.30

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Solution

The fourth proportional to 11,672.10, 17,508.15 and 11,040.30 is: 16,560.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,672.10 : 17,508.15 = 11,040.30 : x
  2. Step 2: Convert to fraction form
    11,672.10/17,508.15 = 11,040.30/x
  3. Step 3: Cross multiply
    11,672.10x = 17,508.15 × 11,040.30
  4. Step 4: Simplify right side
    11,672.10x = 193,295,228.45
  5. Step 5: Solve for x
    x = 193,295,228.45/11,672.10
  6. Step 6: Final answer
    x = 16,560.45

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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.