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Finding the Fourth Proportional to 16,672.40, 25,008.60 and 6,805.20

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Solution

The fourth proportional to 16,672.40, 25,008.60 and 6,805.20 is: 10,207.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,672.40 : 25,008.60 = 6,805.20 : x
  2. Step 2: Convert to fraction form
    16,672.40/25,008.60 = 6,805.20/x
  3. Step 3: Cross multiply
    16,672.40x = 25,008.60 × 6,805.20
  4. Step 4: Simplify right side
    16,672.40x = 170,188,524.72
  5. Step 5: Solve for x
    x = 170,188,524.72/16,672.40
  6. Step 6: Final answer
    x = 10,207.80

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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.