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Finding the Fourth Proportional to 18,009.45, 24,851.26 and 9,942.59

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Solution

The fourth proportional to 18,009.45, 24,851.26 and 9,942.59 is: 13,719.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,009.45 : 24,851.26 = 9,942.59 : x
  2. Step 2: Convert to fraction form
    18,009.45/24,851.26 = 9,942.59/x
  3. Step 3: Cross multiply
    18,009.45x = 24,851.26 × 9,942.59
  4. Step 4: Simplify right side
    18,009.45x = 247,085,733.06
  5. Step 5: Solve for x
    x = 247,085,733.06/18,009.45
  6. Step 6: Final answer
    x = 13,719.78

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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.