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Finding the Fourth Proportional to 18,713.48, 25,824.21 and 10,755.50

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Solution

The fourth proportional to 18,713.48, 25,824.21 and 10,755.50 is: 14,842.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,713.48 : 25,824.21 = 10,755.50 : x
  2. Step 2: Convert to fraction form
    18,713.48/25,824.21 = 10,755.50/x
  3. Step 3: Cross multiply
    18,713.48x = 25,824.21 × 10,755.50
  4. Step 4: Simplify right side
    18,713.48x = 277,752,161.53
  5. Step 5: Solve for x
    x = 277,752,161.53/18,713.48
  6. Step 6: Final answer
    x = 14,842.36

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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.