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Finding the Fourth Proportional to 18,391, 27,594.60 and 6,079

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Solution

The fourth proportional to 18,391, 27,594.60 and 6,079 is: 9,121.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,391 : 27,594.60 = 6,079 : x
  2. Step 2: Convert to fraction form
    18,391/27,594.60 = 6,079/x
  3. Step 3: Cross multiply
    18,391x = 27,594.60 × 6,079
  4. Step 4: Simplify right side
    18,391x = 167,747,573.40
  5. Step 5: Solve for x
    x = 167,747,573.40/18,391
  6. Step 6: Final answer
    x = 9,121.18

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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.