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Finding the Fourth Proportional to 7,572.66, 11,362.68 and 2,640.12

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Solution

The fourth proportional to 7,572.66, 11,362.68 and 2,640.12 is: 3,961.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,572.66 : 11,362.68 = 2,640.12 : x
  2. Step 2: Convert to fraction form
    7,572.66/11,362.68 = 2,640.12/x
  3. Step 3: Cross multiply
    7,572.66x = 11,362.68 × 2,640.12
  4. Step 4: Simplify right side
    7,572.66x = 29,998,838.72
  5. Step 5: Solve for x
    x = 29,998,838.72/7,572.66
  6. Step 6: Final answer
    x = 3,961.47

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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.