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Finding the Fourth Proportional to 18,466.78, 27,693.18 and 6,617.35

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Solution

The fourth proportional to 18,466.78, 27,693.18 and 6,617.35 is: 9,923.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,466.78 : 27,693.18 = 6,617.35 : x
  2. Step 2: Convert to fraction form
    18,466.78/27,693.18 = 6,617.35/x
  3. Step 3: Cross multiply
    18,466.78x = 27,693.18 × 6,617.35
  4. Step 4: Simplify right side
    18,466.78x = 183,255,464.67
  5. Step 5: Solve for x
    x = 183,255,464.67/18,466.78
  6. Step 6: Final answer
    x = 9,923.52

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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.