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Finding the Fourth Proportional to 6,312, 9,472.32 and 2,208

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Solution

The fourth proportional to 6,312, 9,472.32 and 2,208 is: 3,313.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,312 : 9,472.32 = 2,208 : x
  2. Step 2: Convert to fraction form
    6,312/9,472.32 = 2,208/x
  3. Step 3: Cross multiply
    6,312x = 9,472.32 × 2,208
  4. Step 4: Simplify right side
    6,312x = 20,914,882.56
  5. Step 5: Solve for x
    x = 20,914,882.56/6,312
  6. Step 6: Final answer
    x = 3,313.51

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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.