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Finding the Fourth Proportional to 18,065.53, 27,098.64 and 4,918.24

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Solution

The fourth proportional to 18,065.53, 27,098.64 and 4,918.24 is: 7,377.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,065.53 : 27,098.64 = 4,918.24 : x
  2. Step 2: Convert to fraction form
    18,065.53/27,098.64 = 4,918.24/x
  3. Step 3: Cross multiply
    18,065.53x = 27,098.64 × 4,918.24
  4. Step 4: Simplify right side
    18,065.53x = 133,277,718.37
  5. Step 5: Solve for x
    x = 133,277,718.37/18,065.53
  6. Step 6: Final answer
    x = 7,377.46

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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.