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Finding the Fourth Proportional to 17,168, 23,693.28 and 10,878.08

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Solution

The fourth proportional to 17,168, 23,693.28 and 10,878.08 is: 15,012.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,168 : 23,693.28 = 10,878.08 : x
  2. Step 2: Convert to fraction form
    17,168/23,693.28 = 10,878.08/x
  3. Step 3: Cross multiply
    17,168x = 23,693.28 × 10,878.08
  4. Step 4: Simplify right side
    17,168x = 257,737,395.30
  5. Step 5: Solve for x
    x = 257,737,395.30/17,168
  6. Step 6: Final answer
    x = 15,012.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.