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Finding the Fourth Proportional to 26,991.80, 37,248.70 and 14,892

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Solution

The fourth proportional to 26,991.80, 37,248.70 and 14,892 is: 20,550.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,991.80 : 37,248.70 = 14,892 : x
  2. Step 2: Convert to fraction form
    26,991.80/37,248.70 = 14,892/x
  3. Step 3: Cross multiply
    26,991.80x = 37,248.70 × 14,892
  4. Step 4: Simplify right side
    26,991.80x = 554,707,640.40
  5. Step 5: Solve for x
    x = 554,707,640.40/26,991.80
  6. Step 6: Final answer
    x = 20,550.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.