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Finding the Fourth Proportional to 18,403, 27,608.88 and 6,091

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Solution

The fourth proportional to 18,403, 27,608.88 and 6,091 is: 9,137.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,403 : 27,608.88 = 6,091 : x
  2. Step 2: Convert to fraction form
    18,403/27,608.88 = 6,091/x
  3. Step 3: Cross multiply
    18,403x = 27,608.88 × 6,091
  4. Step 4: Simplify right side
    18,403x = 168,165,688.08
  5. Step 5: Solve for x
    x = 168,165,688.08/18,403
  6. Step 6: Final answer
    x = 9,137.95

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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.