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Finding the Fourth Proportional to 11,621.17, 17,403.05 and 6,079.18

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Solution

The fourth proportional to 11,621.17, 17,403.05 and 6,079.18 is: 9,103.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,621.17 : 17,403.05 = 6,079.18 : x
  2. Step 2: Convert to fraction form
    11,621.17/17,403.05 = 6,079.18/x
  3. Step 3: Cross multiply
    11,621.17x = 17,403.05 × 6,079.18
  4. Step 4: Simplify right side
    11,621.17x = 105,796,228.87
  5. Step 5: Solve for x
    x = 105,796,228.87/11,621.17
  6. Step 6: Final answer
    x = 9,103.75

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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.