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Finding the Fourth Proportional to 48,396.99, 72,609.31 and 15,117.54

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Solution

The fourth proportional to 48,396.99, 72,609.31 and 15,117.54 is: 22,680.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,396.99 : 72,609.31 = 15,117.54 : x
  2. Step 2: Convert to fraction form
    48,396.99/72,609.31 = 15,117.54/x
  3. Step 3: Cross multiply
    48,396.99x = 72,609.31 × 15,117.54
  4. Step 4: Simplify right side
    48,396.99x = 1,097,673,894.91
  5. Step 5: Solve for x
    x = 1,097,673,894.91/48,396.99
  6. Step 6: Final answer
    x = 22,680.62

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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.