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Finding the Fourth Proportional to 18,331.01, 25,296.81 and 9,947.51

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Solution

The fourth proportional to 18,331.01, 25,296.81 and 9,947.51 is: 13,727.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,331.01 : 25,296.81 = 9,947.51 : x
  2. Step 2: Convert to fraction form
    18,331.01/25,296.81 = 9,947.51/x
  3. Step 3: Cross multiply
    18,331.01x = 25,296.81 × 9,947.51
  4. Step 4: Simplify right side
    18,331.01x = 251,640,270.44
  5. Step 5: Solve for x
    x = 251,640,270.44/18,331.01
  6. Step 6: Final answer
    x = 13,727.57

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1.5x scale

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.