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Finding the Fourth Proportional to 16,685.80, 25,031.43 and 6,822.43

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Solution

The fourth proportional to 16,685.80, 25,031.43 and 6,822.43 is: 10,234.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,685.80 : 25,031.43 = 6,822.43 : x
  2. Step 2: Convert to fraction form
    16,685.80/25,031.43 = 6,822.43/x
  3. Step 3: Cross multiply
    16,685.80x = 25,031.43 × 6,822.43
  4. Step 4: Simplify right side
    16,685.80x = 170,775,116.40
  5. Step 5: Solve for x
    x = 170,775,116.40/16,685.80
  6. Step 6: Final answer
    x = 10,234.76

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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.