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Finding the Fourth Proportional to 2,713.72, 4,070.59 and 1,069.38

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Solution

The fourth proportional to 2,713.72, 4,070.59 and 1,069.38 is: 1,604.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,713.72 : 4,070.59 = 1,069.38 : x
  2. Step 2: Convert to fraction form
    2,713.72/4,070.59 = 1,069.38/x
  3. Step 3: Cross multiply
    2,713.72x = 4,070.59 × 1,069.38
  4. Step 4: Simplify right side
    2,713.72x = 4,353,007.53
  5. Step 5: Solve for x
    x = 4,353,007.53/2,713.72
  6. Step 6: Final answer
    x = 1,604.07

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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.