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Finding the Fourth Proportional to 60,819.62, 91,238.15 and 18,703.24

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Solution

The fourth proportional to 60,819.62, 91,238.15 and 18,703.24 is: 28,057.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,819.62 : 91,238.15 = 18,703.24 : x
  2. Step 2: Convert to fraction form
    60,819.62/91,238.15 = 18,703.24/x
  3. Step 3: Cross multiply
    60,819.62x = 91,238.15 × 18,703.24
  4. Step 4: Simplify right side
    60,819.62x = 1,706,448,835.27
  5. Step 5: Solve for x
    x = 1,706,448,835.27/60,819.62
  6. Step 6: Final answer
    x = 28,057.54

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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.