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Finding the Fourth Proportional to 36,491.11, 50,357.80 and 19,724.11

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Solution

The fourth proportional to 36,491.11, 50,357.80 and 19,724.11 is: 27,219.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,491.11 : 50,357.80 = 19,724.11 : x
  2. Step 2: Convert to fraction form
    36,491.11/50,357.80 = 19,724.11/x
  3. Step 3: Cross multiply
    36,491.11x = 50,357.80 × 19,724.11
  4. Step 4: Simplify right side
    36,491.11x = 993,262,685.32
  5. Step 5: Solve for x
    x = 993,262,685.32/36,491.11
  6. Step 6: Final answer
    x = 27,219.31

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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.