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Finding the Fourth Proportional to 9,399.75, 12,968.43 and 5,363.68

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Solution

The fourth proportional to 9,399.75, 12,968.43 and 5,363.68 is: 7,400.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,399.75 : 12,968.43 = 5,363.68 : x
  2. Step 2: Convert to fraction form
    9,399.75/12,968.43 = 5,363.68/x
  3. Step 3: Cross multiply
    9,399.75x = 12,968.43 × 5,363.68
  4. Step 4: Simplify right side
    9,399.75x = 69,558,508.62
  5. Step 5: Solve for x
    x = 69,558,508.62/9,399.75
  6. Step 6: Final answer
    x = 7,400.04

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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.