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Finding the Fourth Proportional to 17,792.19, 26,679.92 and 10,398.78

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Solution

The fourth proportional to 17,792.19, 26,679.92 and 10,398.78 is: 15,593.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,792.19 : 26,679.92 = 10,398.78 : x
  2. Step 2: Convert to fraction form
    17,792.19/26,679.92 = 10,398.78/x
  3. Step 3: Cross multiply
    17,792.19x = 26,679.92 × 10,398.78
  4. Step 4: Simplify right side
    17,792.19x = 277,438,566.50
  5. Step 5: Solve for x
    x = 277,438,566.50/17,792.19
  6. Step 6: Final answer
    x = 15,593.28

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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.