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Finding the Fourth Proportional to 3,147.99, 4,717.13 and 1,199.13

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Solution

The fourth proportional to 3,147.99, 4,717.13 and 1,199.13 is: 1,796.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.99 : 4,717.13 = 1,199.13 : x
  2. Step 2: Convert to fraction form
    3,147.99/4,717.13 = 1,199.13/x
  3. Step 3: Cross multiply
    3,147.99x = 4,717.13 × 1,199.13
  4. Step 4: Simplify right side
    3,147.99x = 5,656,446.10
  5. Step 5: Solve for x
    x = 5,656,446.10/3,147.99
  6. Step 6: Final answer
    x = 1,796.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.