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Finding the Fourth Proportional to 18,653.77, 25,744.43 and 10,695.97

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Solution

The fourth proportional to 18,653.77, 25,744.43 and 10,695.97 is: 14,761.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,653.77 : 25,744.43 = 10,695.97 : x
  2. Step 2: Convert to fraction form
    18,653.77/25,744.43 = 10,695.97/x
  3. Step 3: Cross multiply
    18,653.77x = 25,744.43 × 10,695.97
  4. Step 4: Simplify right side
    18,653.77x = 275,361,650.95
  5. Step 5: Solve for x
    x = 275,361,650.95/18,653.77
  6. Step 6: Final answer
    x = 14,761.72

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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.