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Finding the Fourth Proportional to 36,243, 50,016.06 and 20,328.48

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Solution

The fourth proportional to 36,243, 50,016.06 and 20,328.48 is: 28,053.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,243 : 50,016.06 = 20,328.48 : x
  2. Step 2: Convert to fraction form
    36,243/50,016.06 = 20,328.48/x
  3. Step 3: Cross multiply
    36,243x = 50,016.06 × 20,328.48
  4. Step 4: Simplify right side
    36,243x = 1,016,750,475.39
  5. Step 5: Solve for x
    x = 1,016,750,475.39/36,243
  6. Step 6: Final answer
    x = 28,053.71

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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.