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Finding the Fourth Proportional to 18,337.50, 25,305.75 and 9,954

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Solution

The fourth proportional to 18,337.50, 25,305.75 and 9,954 is: 13,736.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,337.50 : 25,305.75 = 9,954 : x
  2. Step 2: Convert to fraction form
    18,337.50/25,305.75 = 9,954/x
  3. Step 3: Cross multiply
    18,337.50x = 25,305.75 × 9,954
  4. Step 4: Simplify right side
    18,337.50x = 251,893,435.50
  5. Step 5: Solve for x
    x = 251,893,435.50/18,337.50
  6. Step 6: Final answer
    x = 13,736.52

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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.