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Finding the Fourth Proportional to 17,470.98, 26,207.28 and 4,992.78

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Solution

The fourth proportional to 17,470.98, 26,207.28 and 4,992.78 is: 7,489.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,470.98 : 26,207.28 = 4,992.78 : x
  2. Step 2: Convert to fraction form
    17,470.98/26,207.28 = 4,992.78/x
  3. Step 3: Cross multiply
    17,470.98x = 26,207.28 × 4,992.78
  4. Step 4: Simplify right side
    17,470.98x = 130,847,183.44
  5. Step 5: Solve for x
    x = 130,847,183.44/17,470.98
  6. Step 6: Final answer
    x = 7,489.40

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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.