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Finding the Fourth Proportional to 18,408.84, 27,623.02 and 14,054.28

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Solution

The fourth proportional to 18,408.84, 27,623.02 and 14,054.28 is: 21,088.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,408.84 : 27,623.02 = 14,054.28 : x
  2. Step 2: Convert to fraction form
    18,408.84/27,623.02 = 14,054.28/x
  3. Step 3: Cross multiply
    18,408.84x = 27,623.02 × 14,054.28
  4. Step 4: Simplify right side
    18,408.84x = 388,221,657.53
  5. Step 5: Solve for x
    x = 388,221,657.53/18,408.84
  6. Step 6: Final answer
    x = 21,088.87

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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.