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Finding the Fourth Proportional to 17,208.49, 25,696.17 and 13,658.66

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Solution

The fourth proportional to 17,208.49, 25,696.17 and 13,658.66 is: 20,395.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,208.49 : 25,696.17 = 13,658.66 : x
  2. Step 2: Convert to fraction form
    17,208.49/25,696.17 = 13,658.66/x
  3. Step 3: Cross multiply
    17,208.49x = 25,696.17 × 13,658.66
  4. Step 4: Simplify right side
    17,208.49x = 350,975,181.04
  5. Step 5: Solve for x
    x = 350,975,181.04/17,208.49
  6. Step 6: Final answer
    x = 20,395.47

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.