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Finding the Fourth Proportional to 16,744.80, 25,117.20 and 12,079.20

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Solution

The fourth proportional to 16,744.80, 25,117.20 and 12,079.20 is: 18,118.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,744.80 : 25,117.20 = 12,079.20 : x
  2. Step 2: Convert to fraction form
    16,744.80/25,117.20 = 12,079.20/x
  3. Step 3: Cross multiply
    16,744.80x = 25,117.20 × 12,079.20
  4. Step 4: Simplify right side
    16,744.80x = 303,395,682.24
  5. Step 5: Solve for x
    x = 303,395,682.24/16,744.80
  6. Step 6: Final answer
    x = 18,118.80

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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.