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Finding the Fourth Proportional to 58,390.71, 80,579.79 and 33,241.83

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Solution

The fourth proportional to 58,390.71, 80,579.79 and 33,241.83 is: 45,874.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,390.71 : 80,579.79 = 33,241.83 : x
  2. Step 2: Convert to fraction form
    58,390.71/80,579.79 = 33,241.83/x
  3. Step 3: Cross multiply
    58,390.71x = 80,579.79 × 33,241.83
  4. Step 4: Simplify right side
    58,390.71x = 2,678,619,680.62
  5. Step 5: Solve for x
    x = 2,678,619,680.62/58,390.71
  6. Step 6: Final answer
    x = 45,874.07

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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.