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Finding the Fourth Proportional to 14,870, 22,313.64 and 6,662

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Solution

The fourth proportional to 14,870, 22,313.64 and 6,662 is: 9,996.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,870 : 22,313.64 = 6,662 : x
  2. Step 2: Convert to fraction form
    14,870/22,313.64 = 6,662/x
  3. Step 3: Cross multiply
    14,870x = 22,313.64 × 6,662
  4. Step 4: Simplify right side
    14,870x = 148,653,469.68
  5. Step 5: Solve for x
    x = 148,653,469.68/14,870
  6. Step 6: Final answer
    x = 9,996.87

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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.