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Finding the Fourth Proportional to 26,930.80, 37,169.04 and 17,368

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Solution

The fourth proportional to 26,930.80, 37,169.04 and 17,368 is: 23,970.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,930.80 : 37,169.04 = 17,368 : x
  2. Step 2: Convert to fraction form
    26,930.80/37,169.04 = 17,368/x
  3. Step 3: Cross multiply
    26,930.80x = 37,169.04 × 17,368
  4. Step 4: Simplify right side
    26,930.80x = 645,551,886.72
  5. Step 5: Solve for x
    x = 645,551,886.72/26,930.80
  6. Step 6: Final answer
    x = 23,970.77

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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.