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Finding the Fourth Proportional to 17,792.68, 26,674.60 and 7,412.20

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Solution

The fourth proportional to 17,792.68, 26,674.60 and 7,412.20 is: 11,112.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,792.68 : 26,674.60 = 7,412.20 : x
  2. Step 2: Convert to fraction form
    17,792.68/26,674.60 = 7,412.20/x
  3. Step 3: Cross multiply
    17,792.68x = 26,674.60 × 7,412.20
  4. Step 4: Simplify right side
    17,792.68x = 197,717,470.12
  5. Step 5: Solve for x
    x = 197,717,470.12/17,792.68
  6. Step 6: Final answer
    x = 11,112.29

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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.