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Finding the Fourth Proportional to 16,898.80, 25,348.20 and 15,797.20

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Solution

The fourth proportional to 16,898.80, 25,348.20 and 15,797.20 is: 23,695.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,898.80 : 25,348.20 = 15,797.20 : x
  2. Step 2: Convert to fraction form
    16,898.80/25,348.20 = 15,797.20/x
  3. Step 3: Cross multiply
    16,898.80x = 25,348.20 × 15,797.20
  4. Step 4: Simplify right side
    16,898.80x = 400,430,585.04
  5. Step 5: Solve for x
    x = 400,430,585.04/16,898.80
  6. Step 6: Final answer
    x = 23,695.80

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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.