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Finding the Fourth Proportional to 36,491.86, 50,358.75 and 19,724.86

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Solution

The fourth proportional to 36,491.86, 50,358.75 and 19,724.86 is: 27,220.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,491.86 : 50,358.75 = 19,724.86 : x
  2. Step 2: Convert to fraction form
    36,491.86/50,358.75 = 19,724.86/x
  3. Step 3: Cross multiply
    36,491.86x = 50,358.75 × 19,724.86
  4. Step 4: Simplify right side
    36,491.86x = 993,319,041.73
  5. Step 5: Solve for x
    x = 993,319,041.73/36,491.86
  6. Step 6: Final answer
    x = 27,220.29

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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.