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Finding the Fourth Proportional to 9,831, 13,563.90 and 5,850.12

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Solution

The fourth proportional to 9,831, 13,563.90 and 5,850.12 is: 8,071.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,831 : 13,563.90 = 5,850.12 : x
  2. Step 2: Convert to fraction form
    9,831/13,563.90 = 5,850.12/x
  3. Step 3: Cross multiply
    9,831x = 13,563.90 × 5,850.12
  4. Step 4: Simplify right side
    9,831x = 79,350,442.67
  5. Step 5: Solve for x
    x = 79,350,442.67/9,831
  6. Step 6: Final answer
    x = 8,071.45

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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.