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Finding the Fourth Proportional to 7,092.60, 10,640.03 and 2,161.11

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Solution

The fourth proportional to 7,092.60, 10,640.03 and 2,161.11 is: 3,242.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,092.60 : 10,640.03 = 2,161.11 : x
  2. Step 2: Convert to fraction form
    7,092.60/10,640.03 = 2,161.11/x
  3. Step 3: Cross multiply
    7,092.60x = 10,640.03 × 2,161.11
  4. Step 4: Simplify right side
    7,092.60x = 22,994,264.43
  5. Step 5: Solve for x
    x = 22,994,264.43/7,092.60
  6. Step 6: Final answer
    x = 3,242.01

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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.