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Finding the Fourth Proportional to 58,245.70, 87,380.70 and 33,265.30

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Solution

The fourth proportional to 58,245.70, 87,380.70 and 33,265.30 is: 49,904.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,245.70 : 87,380.70 = 33,265.30 : x
  2. Step 2: Convert to fraction form
    58,245.70/87,380.70 = 33,265.30/x
  3. Step 3: Cross multiply
    58,245.70x = 87,380.70 × 33,265.30
  4. Step 4: Simplify right side
    58,245.70x = 2,906,745,199.71
  5. Step 5: Solve for x
    x = 2,906,745,199.71/58,245.70
  6. Step 6: Final answer
    x = 49,904.89

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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.