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Finding the Fourth Proportional to 18,404.66, 27,607.44 and 6,717.90

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Solution

The fourth proportional to 18,404.66, 27,607.44 and 6,717.90 is: 10,077.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,404.66 : 27,607.44 = 6,717.90 : x
  2. Step 2: Convert to fraction form
    18,404.66/27,607.44 = 6,717.90/x
  3. Step 3: Cross multiply
    18,404.66x = 27,607.44 × 6,717.90
  4. Step 4: Simplify right side
    18,404.66x = 185,464,021.18
  5. Step 5: Solve for x
    x = 185,464,021.18/18,404.66
  6. Step 6: Final answer
    x = 10,077.01

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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.