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Finding the Fourth Proportional to 18,843.87, 26,004.87 and 10,346.79

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Solution

The fourth proportional to 18,843.87, 26,004.87 and 10,346.79 is: 14,278.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,843.87 : 26,004.87 = 10,346.79 : x
  2. Step 2: Convert to fraction form
    18,843.87/26,004.87 = 10,346.79/x
  3. Step 3: Cross multiply
    18,843.87x = 26,004.87 × 10,346.79
  4. Step 4: Simplify right side
    18,843.87x = 269,066,928.87
  5. Step 5: Solve for x
    x = 269,066,928.87/18,843.87
  6. Step 6: Final answer
    x = 14,278.75

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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.