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Finding the Fourth Proportional to 16,500.80, 24,751.20 and 15,550.40

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Solution

The fourth proportional to 16,500.80, 24,751.20 and 15,550.40 is: 23,325.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,500.80 : 24,751.20 = 15,550.40 : x
  2. Step 2: Convert to fraction form
    16,500.80/24,751.20 = 15,550.40/x
  3. Step 3: Cross multiply
    16,500.80x = 24,751.20 × 15,550.40
  4. Step 4: Simplify right side
    16,500.80x = 384,891,060.48
  5. Step 5: Solve for x
    x = 384,891,060.48/16,500.80
  6. Step 6: Final answer
    x = 23,325.60

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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.