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Finding the Fourth Proportional to 9,362.04, 12,919.26 and 5,170.20

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Solution

The fourth proportional to 9,362.04, 12,919.26 and 5,170.20 is: 7,134.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,362.04 : 12,919.26 = 5,170.20 : x
  2. Step 2: Convert to fraction form
    9,362.04/12,919.26 = 5,170.20/x
  3. Step 3: Cross multiply
    9,362.04x = 12,919.26 × 5,170.20
  4. Step 4: Simplify right side
    9,362.04x = 66,795,158.05
  5. Step 5: Solve for x
    x = 66,795,158.05/9,362.04
  6. Step 6: Final answer
    x = 7,134.68

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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.