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Finding the Fourth Proportional to 23,986.80, 36,023.40 and 17,420.40

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Solution

The fourth proportional to 23,986.80, 36,023.40 and 17,420.40 is: 26,161.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,986.80 : 36,023.40 = 17,420.40 : x
  2. Step 2: Convert to fraction form
    23,986.80/36,023.40 = 17,420.40/x
  3. Step 3: Cross multiply
    23,986.80x = 36,023.40 × 17,420.40
  4. Step 4: Simplify right side
    23,986.80x = 627,542,037.36
  5. Step 5: Solve for x
    x = 627,542,037.36/23,986.80
  6. Step 6: Final answer
    x = 26,161.97

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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.