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Finding the Fourth Proportional to 18,354,687.53, 27,507,229.97 and 6,988,936.01

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Solution

The fourth proportional to 18,354,687.53, 27,507,229.97 and 6,988,936.01 is: 10,473,960.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,354,687.53 : 27,507,229.97 = 6,988,936.01 : x
  2. Step 2: Convert to fraction form
    18,354,687.53/27,507,229.97 = 6,988,936.01/x
  3. Step 3: Cross multiply
    18,354,687.53x = 27,507,229.97 × 6,988,936.01
  4. Step 4: Simplify right side
    18,354,687.53x = 192,246,269,900,203.38
  5. Step 5: Solve for x
    x = 192,246,269,900,203.38/18,354,687.53
  6. Step 6: Final answer
    x = 10,473,960.38

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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.