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Finding the Fourth Proportional to 18,653.76, 25,744.66 and 10,694.46

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Solution

The fourth proportional to 18,653.76, 25,744.66 and 10,694.46 is: 14,759.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,653.76 : 25,744.66 = 10,694.46 : x
  2. Step 2: Convert to fraction form
    18,653.76/25,744.66 = 10,694.46/x
  3. Step 3: Cross multiply
    18,653.76x = 25,744.66 × 10,694.46
  4. Step 4: Simplify right side
    18,653.76x = 275,325,236.58
  5. Step 5: Solve for x
    x = 275,325,236.58/18,653.76
  6. Step 6: Final answer
    x = 14,759.77

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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.