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Finding the Fourth Proportional to 18,332.28, 27,498.36 and 6,645.48

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Solution

The fourth proportional to 18,332.28, 27,498.36 and 6,645.48 is: 9,968.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,332.28 : 27,498.36 = 6,645.48 : x
  2. Step 2: Convert to fraction form
    18,332.28/27,498.36 = 6,645.48/x
  3. Step 3: Cross multiply
    18,332.28x = 27,498.36 × 6,645.48
  4. Step 4: Simplify right side
    18,332.28x = 182,739,801.41
  5. Step 5: Solve for x
    x = 182,739,801.41/18,332.28
  6. Step 6: Final answer
    x = 9,968.20

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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.