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Finding the Fourth Proportional to 17,747.80, 26,612.10 and 7,347.80

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Solution

The fourth proportional to 17,747.80, 26,612.10 and 7,347.80 is: 11,017.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,747.80 : 26,612.10 = 7,347.80 : x
  2. Step 2: Convert to fraction form
    17,747.80/26,612.10 = 7,347.80/x
  3. Step 3: Cross multiply
    17,747.80x = 26,612.10 × 7,347.80
  4. Step 4: Simplify right side
    17,747.80x = 195,540,388.38
  5. Step 5: Solve for x
    x = 195,540,388.38/17,747.80
  6. Step 6: Final answer
    x = 11,017.73

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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.