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Finding the Fourth Proportional to 6,751.73, 10,127.90 and 2,071.40

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Solution

The fourth proportional to 6,751.73, 10,127.90 and 2,071.40 is: 3,107.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,751.73 : 10,127.90 = 2,071.40 : x
  2. Step 2: Convert to fraction form
    6,751.73/10,127.90 = 2,071.40/x
  3. Step 3: Cross multiply
    6,751.73x = 10,127.90 × 2,071.40
  4. Step 4: Simplify right side
    6,751.73x = 20,978,932.06
  5. Step 5: Solve for x
    x = 20,978,932.06/6,751.73
  6. Step 6: Final answer
    x = 3,107.19

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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.