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Finding the Fourth Proportional to 16,676.80, 25,015.20 and 16,312.30

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Solution

The fourth proportional to 16,676.80, 25,015.20 and 16,312.30 is: 24,468.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,676.80 : 25,015.20 = 16,312.30 : x
  2. Step 2: Convert to fraction form
    16,676.80/25,015.20 = 16,312.30/x
  3. Step 3: Cross multiply
    16,676.80x = 25,015.20 × 16,312.30
  4. Step 4: Simplify right side
    16,676.80x = 408,055,446.96
  5. Step 5: Solve for x
    x = 408,055,446.96/16,676.80
  6. Step 6: Final answer
    x = 24,468.45

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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.