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Finding the Fourth Proportional to 48,445.78, 72,668.70 and 15,168.70

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Solution

The fourth proportional to 48,445.78, 72,668.70 and 15,168.70 is: 22,753.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,445.78 : 72,668.70 = 15,168.70 : x
  2. Step 2: Convert to fraction form
    48,445.78/72,668.70 = 15,168.70/x
  3. Step 3: Cross multiply
    48,445.78x = 72,668.70 × 15,168.70
  4. Step 4: Simplify right side
    48,445.78x = 1,102,289,709.69
  5. Step 5: Solve for x
    x = 1,102,289,709.69/48,445.78
  6. Step 6: Final answer
    x = 22,753.06

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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.