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Finding the Fourth Proportional to 17,226.80, 25,840.20 and 15,347.60

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Solution

The fourth proportional to 17,226.80, 25,840.20 and 15,347.60 is: 23,021.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,226.80 : 25,840.20 = 15,347.60 : x
  2. Step 2: Convert to fraction form
    17,226.80/25,840.20 = 15,347.60/x
  3. Step 3: Cross multiply
    17,226.80x = 25,840.20 × 15,347.60
  4. Step 4: Simplify right side
    17,226.80x = 396,585,053.52
  5. Step 5: Solve for x
    x = 396,585,053.52/17,226.80
  6. Step 6: Final answer
    x = 23,021.40

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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.