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Finding the Fourth Proportional to 18,242.10, 27,362.74 and 15,769.58

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Solution

The fourth proportional to 18,242.10, 27,362.74 and 15,769.58 is: 23,654.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,242.10 : 27,362.74 = 15,769.58 : x
  2. Step 2: Convert to fraction form
    18,242.10/27,362.74 = 15,769.58/x
  3. Step 3: Cross multiply
    18,242.10x = 27,362.74 × 15,769.58
  4. Step 4: Simplify right side
    18,242.10x = 431,498,917.45
  5. Step 5: Solve for x
    x = 431,498,917.45/18,242.10
  6. Step 6: Final answer
    x = 23,654.02

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1.5x scale

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.