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Finding the Fourth Proportional to 6,687.95, 10,031.90 and 2,007.94

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Solution

The fourth proportional to 6,687.95, 10,031.90 and 2,007.94 is: 3,011.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,687.95 : 10,031.90 = 2,007.94 : x
  2. Step 2: Convert to fraction form
    6,687.95/10,031.90 = 2,007.94/x
  3. Step 3: Cross multiply
    6,687.95x = 10,031.90 × 2,007.94
  4. Step 4: Simplify right side
    6,687.95x = 20,143,458.31
  5. Step 5: Solve for x
    x = 20,143,458.31/6,687.95
  6. Step 6: Final answer
    x = 3,011.90

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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.