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Finding the Fourth Proportional to 48,651.22, 72,979 and 14,914.81

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Solution

The fourth proportional to 48,651.22, 72,979 and 14,914.81 is: 22,372.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,651.22 : 72,979 = 14,914.81 : x
  2. Step 2: Convert to fraction form
    48,651.22/72,979 = 14,914.81/x
  3. Step 3: Cross multiply
    48,651.22x = 72,979 × 14,914.81
  4. Step 4: Simplify right side
    48,651.22x = 1,088,467,918.99
  5. Step 5: Solve for x
    x = 1,088,467,918.99/48,651.22
  6. Step 6: Final answer
    x = 22,372.88

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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.