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Finding the Fourth Proportional to 11,679.66, 17,523.90 and 7,002.99

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Solution

The fourth proportional to 11,679.66, 17,523.90 and 7,002.99 is: 10,507.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,679.66 : 17,523.90 = 7,002.99 : x
  2. Step 2: Convert to fraction form
    11,679.66/17,523.90 = 7,002.99/x
  3. Step 3: Cross multiply
    11,679.66x = 17,523.90 × 7,002.99
  4. Step 4: Simplify right side
    11,679.66x = 122,719,696.46
  5. Step 5: Solve for x
    x = 122,719,696.46/11,679.66
  6. Step 6: Final answer
    x = 10,507.13

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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.