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Finding the Fourth Proportional to 18,484.28, 27,726.44 and 4,633.28

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Solution

The fourth proportional to 18,484.28, 27,726.44 and 4,633.28 is: 6,949.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,484.28 : 27,726.44 = 4,633.28 : x
  2. Step 2: Convert to fraction form
    18,484.28/27,726.44 = 4,633.28/x
  3. Step 3: Cross multiply
    18,484.28x = 27,726.44 × 4,633.28
  4. Step 4: Simplify right side
    18,484.28x = 128,464,359.92
  5. Step 5: Solve for x
    x = 128,464,359.92/18,484.28
  6. Step 6: Final answer
    x = 6,949.93

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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.