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Finding the Fourth Proportional to 10,704.80, 16,057.20 and 6,768.20

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Solution

The fourth proportional to 10,704.80, 16,057.20 and 6,768.20 is: 10,152.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,704.80 : 16,057.20 = 6,768.20 : x
  2. Step 2: Convert to fraction form
    10,704.80/16,057.20 = 6,768.20/x
  3. Step 3: Cross multiply
    10,704.80x = 16,057.20 × 6,768.20
  4. Step 4: Simplify right side
    10,704.80x = 108,678,341.04
  5. Step 5: Solve for x
    x = 108,678,341.04/10,704.80
  6. Step 6: Final answer
    x = 10,152.30

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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.