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Finding the Fourth Proportional to 50,641.98, 69,889.22 and 27,980.97

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Solution

The fourth proportional to 50,641.98, 69,889.22 and 27,980.97 is: 38,615.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,641.98 : 69,889.22 = 27,980.97 : x
  2. Step 2: Convert to fraction form
    50,641.98/69,889.22 = 27,980.97/x
  3. Step 3: Cross multiply
    50,641.98x = 69,889.22 × 27,980.97
  4. Step 4: Simplify right side
    50,641.98x = 1,955,567,766.15
  5. Step 5: Solve for x
    x = 1,955,567,766.15/50,641.98
  6. Step 6: Final answer
    x = 38,615.55

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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.