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Finding the Fourth Proportional to 7,239.75, 10,859.64 and 1,767.75

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Solution

The fourth proportional to 7,239.75, 10,859.64 and 1,767.75 is: 2,651.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,239.75 : 10,859.64 = 1,767.75 : x
  2. Step 2: Convert to fraction form
    7,239.75/10,859.64 = 1,767.75/x
  3. Step 3: Cross multiply
    7,239.75x = 10,859.64 × 1,767.75
  4. Step 4: Simplify right side
    7,239.75x = 19,197,128.61
  5. Step 5: Solve for x
    x = 19,197,128.61/7,239.75
  6. Step 6: Final answer
    x = 2,651.63

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Similar ratio
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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.