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Finding the Fourth Proportional to 17,764.80, 26,622.90 and 11,824.80

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Solution

The fourth proportional to 17,764.80, 26,622.90 and 11,824.80 is: 17,721.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,764.80 : 26,622.90 = 11,824.80 : x
  2. Step 2: Convert to fraction form
    17,764.80/26,622.90 = 11,824.80/x
  3. Step 3: Cross multiply
    17,764.80x = 26,622.90 × 11,824.80
  4. Step 4: Simplify right side
    17,764.80x = 314,810,467.92
  5. Step 5: Solve for x
    x = 314,810,467.92/17,764.80
  6. Step 6: Final answer
    x = 17,721.03

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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.