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Finding the Fourth Proportional to 17,115.30, 25,672.95 and 16,750.80

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Solution

The fourth proportional to 17,115.30, 25,672.95 and 16,750.80 is: 25,126.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,115.30 : 25,672.95 = 16,750.80 : x
  2. Step 2: Convert to fraction form
    17,115.30/25,672.95 = 16,750.80/x
  3. Step 3: Cross multiply
    17,115.30x = 25,672.95 × 16,750.80
  4. Step 4: Simplify right side
    17,115.30x = 430,042,450.86
  5. Step 5: Solve for x
    x = 430,042,450.86/17,115.30
  6. Step 6: Final answer
    x = 25,126.20

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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.