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Finding the Fourth Proportional to 17,178.80, 25,768.20 and 16,077.20

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Solution

The fourth proportional to 17,178.80, 25,768.20 and 16,077.20 is: 24,115.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,178.80 : 25,768.20 = 16,077.20 : x
  2. Step 2: Convert to fraction form
    17,178.80/25,768.20 = 16,077.20/x
  3. Step 3: Cross multiply
    17,178.80x = 25,768.20 × 16,077.20
  4. Step 4: Simplify right side
    17,178.80x = 414,280,505.04
  5. Step 5: Solve for x
    x = 414,280,505.04/17,178.80
  6. Step 6: Final answer
    x = 24,115.80

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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.