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Finding the Fourth Proportional to 58,663.44, 80,912.52 and 38,512.97

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Solution

The fourth proportional to 58,663.44, 80,912.52 and 38,512.97 is: 53,119.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,663.44 : 80,912.52 = 38,512.97 : x
  2. Step 2: Convert to fraction form
    58,663.44/80,912.52 = 38,512.97/x
  3. Step 3: Cross multiply
    58,663.44x = 80,912.52 × 38,512.97
  4. Step 4: Simplify right side
    58,663.44x = 3,116,181,050.82
  5. Step 5: Solve for x
    x = 3,116,181,050.82/58,663.44
  6. Step 6: Final answer
    x = 53,119.64

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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.