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Finding the Fourth Proportional to 17,963.40, 26,945.10 and 16,651.20

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Solution

The fourth proportional to 17,963.40, 26,945.10 and 16,651.20 is: 24,976.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,963.40 : 26,945.10 = 16,651.20 : x
  2. Step 2: Convert to fraction form
    17,963.40/26,945.10 = 16,651.20/x
  3. Step 3: Cross multiply
    17,963.40x = 26,945.10 × 16,651.20
  4. Step 4: Simplify right side
    17,963.40x = 448,668,249.12
  5. Step 5: Solve for x
    x = 448,668,249.12/17,963.40
  6. Step 6: Final answer
    x = 24,976.80

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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.