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Finding the Fourth Proportional to 12,574.45, 17,370.45 and 11,910.15

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Solution

The fourth proportional to 12,574.45, 17,370.45 and 11,910.15 is: 16,452.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,574.45 : 17,370.45 = 11,910.15 : x
  2. Step 2: Convert to fraction form
    12,574.45/17,370.45 = 11,910.15/x
  3. Step 3: Cross multiply
    12,574.45x = 17,370.45 × 11,910.15
  4. Step 4: Simplify right side
    12,574.45x = 206,884,665.07
  5. Step 5: Solve for x
    x = 206,884,665.07/12,574.45
  6. Step 6: Final answer
    x = 16,452.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.