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Finding the Fourth Proportional to 15,193.92, 22,793.31 and 6,428.91

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Solution

The fourth proportional to 15,193.92, 22,793.31 and 6,428.91 is: 9,644.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,193.92 : 22,793.31 = 6,428.91 : x
  2. Step 2: Convert to fraction form
    15,193.92/22,793.31 = 6,428.91/x
  3. Step 3: Cross multiply
    15,193.92x = 22,793.31 × 6,428.91
  4. Step 4: Simplify right side
    15,193.92x = 146,536,138.59
  5. Step 5: Solve for x
    x = 146,536,138.59/15,193.92
  6. Step 6: Final answer
    x = 9,644.39

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1.5x scale

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.