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Finding the Fourth Proportional to 58,687.64, 80,980.26 and 33,187.22

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Solution

The fourth proportional to 58,687.64, 80,980.26 and 33,187.22 is: 45,793.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,687.64 : 80,980.26 = 33,187.22 : x
  2. Step 2: Convert to fraction form
    58,687.64/80,980.26 = 33,187.22/x
  3. Step 3: Cross multiply
    58,687.64x = 80,980.26 × 33,187.22
  4. Step 4: Simplify right side
    58,687.64x = 2,687,509,704.28
  5. Step 5: Solve for x
    x = 2,687,509,704.28/58,687.64
  6. Step 6: Final answer
    x = 45,793.45

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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.