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Finding the Fourth Proportional to 18,502.83, 27,754.74 and 5,355.72

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Solution

The fourth proportional to 18,502.83, 27,754.74 and 5,355.72 is: 8,033.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,502.83 : 27,754.74 = 5,355.72 : x
  2. Step 2: Convert to fraction form
    18,502.83/27,754.74 = 5,355.72/x
  3. Step 3: Cross multiply
    18,502.83x = 27,754.74 × 5,355.72
  4. Step 4: Simplify right side
    18,502.83x = 148,646,616.11
  5. Step 5: Solve for x
    x = 148,646,616.11/18,502.83
  6. Step 6: Final answer
    x = 8,033.72

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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.