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Finding the Fourth Proportional to 8,736.44, 12,073.41 and 7,764.44

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Solution

The fourth proportional to 8,736.44, 12,073.41 and 7,764.44 is: 10,730.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,736.44 : 12,073.41 = 7,764.44 : x
  2. Step 2: Convert to fraction form
    8,736.44/12,073.41 = 7,764.44/x
  3. Step 3: Cross multiply
    8,736.44x = 12,073.41 × 7,764.44
  4. Step 4: Simplify right side
    8,736.44x = 93,743,207.17
  5. Step 5: Solve for x
    x = 93,743,207.17/8,736.44
  6. Step 6: Final answer
    x = 10,730.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.