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Finding the Fourth Proportional to 18,809.75, 25,958.29 and 10,744.10

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Solution

The fourth proportional to 18,809.75, 25,958.29 and 10,744.10 is: 14,827.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,809.75 : 25,958.29 = 10,744.10 : x
  2. Step 2: Convert to fraction form
    18,809.75/25,958.29 = 10,744.10/x
  3. Step 3: Cross multiply
    18,809.75x = 25,958.29 × 10,744.10
  4. Step 4: Simplify right side
    18,809.75x = 278,898,463.59
  5. Step 5: Solve for x
    x = 278,898,463.59/18,809.75
  6. Step 6: Final answer
    x = 14,827.34

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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.