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Finding the Fourth Proportional to 11,615.17, 17,423.08 and 2,850.07

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Solution

The fourth proportional to 11,615.17, 17,423.08 and 2,850.07 is: 4,275.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,615.17 : 17,423.08 = 2,850.07 : x
  2. Step 2: Convert to fraction form
    11,615.17/17,423.08 = 2,850.07/x
  3. Step 3: Cross multiply
    11,615.17x = 17,423.08 × 2,850.07
  4. Step 4: Simplify right side
    11,615.17x = 49,656,997.62
  5. Step 5: Solve for x
    x = 49,656,997.62/11,615.17
  6. Step 6: Final answer
    x = 4,275.18

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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.