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Finding the Fourth Proportional to 18,182.72, 27,274.71 and 5,036.06

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Solution

The fourth proportional to 18,182.72, 27,274.71 and 5,036.06 is: 7,554.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,182.72 : 27,274.71 = 5,036.06 : x
  2. Step 2: Convert to fraction form
    18,182.72/27,274.71 = 5,036.06/x
  3. Step 3: Cross multiply
    18,182.72x = 27,274.71 × 5,036.06
  4. Step 4: Simplify right side
    18,182.72x = 137,357,163.11
  5. Step 5: Solve for x
    x = 137,357,163.11/18,182.72
  6. Step 6: Final answer
    x = 7,554.27

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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.