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Finding the Fourth Proportional to 18,148.62, 27,199.03 and 16,964.81

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Solution

The fourth proportional to 18,148.62, 27,199.03 and 16,964.81 is: 25,424.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,148.62 : 27,199.03 = 16,964.81 : x
  2. Step 2: Convert to fraction form
    18,148.62/27,199.03 = 16,964.81/x
  3. Step 3: Cross multiply
    18,148.62x = 27,199.03 × 16,964.81
  4. Step 4: Simplify right side
    18,148.62x = 461,426,376.13
  5. Step 5: Solve for x
    x = 461,426,376.13/18,148.62
  6. Step 6: Final answer
    x = 25,424.87

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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.