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Finding the Fourth Proportional to 48,309.66, 72,469.46 and 16,719.67

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Solution

The fourth proportional to 48,309.66, 72,469.46 and 16,719.67 is: 25,081.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,309.66 : 72,469.46 = 16,719.67 : x
  2. Step 2: Convert to fraction form
    48,309.66/72,469.46 = 16,719.67/x
  3. Step 3: Cross multiply
    48,309.66x = 72,469.46 × 16,719.67
  4. Step 4: Simplify right side
    48,309.66x = 1,211,665,316.90
  5. Step 5: Solve for x
    x = 1,211,665,316.90/48,309.66
  6. Step 6: Final answer
    x = 25,081.22

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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.