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Finding the Fourth Proportional to 38,816.80, 58,138.80 and 33,632.80

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Solution

The fourth proportional to 38,816.80, 58,138.80 and 33,632.80 is: 50,374.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,816.80 : 58,138.80 = 33,632.80 : x
  2. Step 2: Convert to fraction form
    38,816.80/58,138.80 = 33,632.80/x
  3. Step 3: Cross multiply
    38,816.80x = 58,138.80 × 33,632.80
  4. Step 4: Simplify right side
    38,816.80x = 1,955,370,632.64
  5. Step 5: Solve for x
    x = 1,955,370,632.64/38,816.80
  6. Step 6: Final answer
    x = 50,374.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.