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Finding the Fourth Proportional to 18,281.70, 27,422.55 and 6,603.30

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Solution

The fourth proportional to 18,281.70, 27,422.55 and 6,603.30 is: 9,904.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,281.70 : 27,422.55 = 6,603.30 : x
  2. Step 2: Convert to fraction form
    18,281.70/27,422.55 = 6,603.30/x
  3. Step 3: Cross multiply
    18,281.70x = 27,422.55 × 6,603.30
  4. Step 4: Simplify right side
    18,281.70x = 181,079,324.42
  5. Step 5: Solve for x
    x = 181,079,324.42/18,281.70
  6. Step 6: Final answer
    x = 9,904.95

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.