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Finding the Fourth Proportional to 18,164.01, 25,057.44 and 11,078.13

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Solution

The fourth proportional to 18,164.01, 25,057.44 and 11,078.13 is: 15,282.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,164.01 : 25,057.44 = 11,078.13 : x
  2. Step 2: Convert to fraction form
    18,164.01/25,057.44 = 11,078.13/x
  3. Step 3: Cross multiply
    18,164.01x = 25,057.44 × 11,078.13
  4. Step 4: Simplify right side
    18,164.01x = 277,589,577.79
  5. Step 5: Solve for x
    x = 277,589,577.79/18,164.01
  6. Step 6: Final answer
    x = 15,282.40

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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.