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Finding the Fourth Proportional to 18,524.79, 25,562.61 and 10,969.79

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Solution

The fourth proportional to 18,524.79, 25,562.61 and 10,969.79 is: 15,137.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,524.79 : 25,562.61 = 10,969.79 : x
  2. Step 2: Convert to fraction form
    18,524.79/25,562.61 = 10,969.79/x
  3. Step 3: Cross multiply
    18,524.79x = 25,562.61 × 10,969.79
  4. Step 4: Simplify right side
    18,524.79x = 280,416,335.74
  5. Step 5: Solve for x
    x = 280,416,335.74/18,524.79
  6. Step 6: Final answer
    x = 15,137.36

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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.