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Finding the Fourth Proportional to 18,510.66, 27,766.08 and 6,664.02

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Solution

The fourth proportional to 18,510.66, 27,766.08 and 6,664.02 is: 9,996.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,510.66 : 27,766.08 = 6,664.02 : x
  2. Step 2: Convert to fraction form
    18,510.66/27,766.08 = 6,664.02/x
  3. Step 3: Cross multiply
    18,510.66x = 27,766.08 × 6,664.02
  4. Step 4: Simplify right side
    18,510.66x = 185,033,712.44
  5. Step 5: Solve for x
    x = 185,033,712.44/18,510.66
  6. Step 6: Final answer
    x = 9,996.06

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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.