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Finding the Fourth Proportional to 6,207.70, 9,312 and 2,312.14

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Solution

The fourth proportional to 6,207.70, 9,312 and 2,312.14 is: 3,468.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,207.70 : 9,312 = 2,312.14 : x
  2. Step 2: Convert to fraction form
    6,207.70/9,312 = 2,312.14/x
  3. Step 3: Cross multiply
    6,207.70x = 9,312 × 2,312.14
  4. Step 4: Simplify right side
    6,207.70x = 21,530,647.68
  5. Step 5: Solve for x
    x = 21,530,647.68/6,207.70
  6. Step 6: Final answer
    x = 3,468.38

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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.