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Finding the Fourth Proportional to 7,822.43, 10,794.22 and 4,465.21

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Solution

The fourth proportional to 7,822.43, 10,794.22 and 4,465.21 is: 6,161.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,822.43 : 10,794.22 = 4,465.21 : x
  2. Step 2: Convert to fraction form
    7,822.43/10,794.22 = 4,465.21/x
  3. Step 3: Cross multiply
    7,822.43x = 10,794.22 × 4,465.21
  4. Step 4: Simplify right side
    7,822.43x = 48,198,459.09
  5. Step 5: Solve for x
    x = 48,198,459.09/7,822.43
  6. Step 6: Final answer
    x = 6,161.57

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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.