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Finding the Fourth Proportional to 2,047.79, 2,825.10 and 1,163.42

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Solution

The fourth proportional to 2,047.79, 2,825.10 and 1,163.42 is: 1,605.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,047.79 : 2,825.10 = 1,163.42 : x
  2. Step 2: Convert to fraction form
    2,047.79/2,825.10 = 1,163.42/x
  3. Step 3: Cross multiply
    2,047.79x = 2,825.10 × 1,163.42
  4. Step 4: Simplify right side
    2,047.79x = 3,286,784.90
  5. Step 5: Solve for x
    x = 3,286,784.90/2,047.79
  6. Step 6: Final answer
    x = 1,605.04

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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.