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Finding the Fourth Proportional to 17,002.80, 25,432.20 and 15,260.40

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Solution

The fourth proportional to 17,002.80, 25,432.20 and 15,260.40 is: 22,825.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,002.80 : 25,432.20 = 15,260.40 : x
  2. Step 2: Convert to fraction form
    17,002.80/25,432.20 = 15,260.40/x
  3. Step 3: Cross multiply
    17,002.80x = 25,432.20 × 15,260.40
  4. Step 4: Simplify right side
    17,002.80x = 388,105,544.88
  5. Step 5: Solve for x
    x = 388,105,544.88/17,002.80
  6. Step 6: Final answer
    x = 22,825.98

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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.