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Finding the Fourth Proportional to 16,811.10, 25,195.05 and 10,230.30

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Solution

The fourth proportional to 16,811.10, 25,195.05 and 10,230.30 is: 15,332.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,811.10 : 25,195.05 = 10,230.30 : x
  2. Step 2: Convert to fraction form
    16,811.10/25,195.05 = 10,230.30/x
  3. Step 3: Cross multiply
    16,811.10x = 25,195.05 × 10,230.30
  4. Step 4: Simplify right side
    16,811.10x = 257,752,920.02
  5. Step 5: Solve for x
    x = 257,752,920.02/16,811.10
  6. Step 6: Final answer
    x = 15,332.31

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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.