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Finding the Fourth Proportional to 7,716.44, 10,622.94 and 7,363.82

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Solution

The fourth proportional to 7,716.44, 10,622.94 and 7,363.82 is: 10,137.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,716.44 : 10,622.94 = 7,363.82 : x
  2. Step 2: Convert to fraction form
    7,716.44/10,622.94 = 7,363.82/x
  3. Step 3: Cross multiply
    7,716.44x = 10,622.94 × 7,363.82
  4. Step 4: Simplify right side
    7,716.44x = 78,225,418.03
  5. Step 5: Solve for x
    x = 78,225,418.03/7,716.44
  6. Step 6: Final answer
    x = 10,137.50

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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.