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Finding the Fourth Proportional to 49,388.72, 74,099.72 and 15,660.25

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Solution

The fourth proportional to 49,388.72, 74,099.72 and 15,660.25 is: 23,495.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,388.72 : 74,099.72 = 15,660.25 : x
  2. Step 2: Convert to fraction form
    49,388.72/74,099.72 = 15,660.25/x
  3. Step 3: Cross multiply
    49,388.72x = 74,099.72 × 15,660.25
  4. Step 4: Simplify right side
    49,388.72x = 1,160,420,140.13
  5. Step 5: Solve for x
    x = 1,160,420,140.13/49,388.72
  6. Step 6: Final answer
    x = 23,495.65

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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.