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Finding the Fourth Proportional to 65,930.66, 98,898.73 and 19,183.54

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Solution

The fourth proportional to 65,930.66, 98,898.73 and 19,183.54 is: 28,776.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,930.66 : 98,898.73 = 19,183.54 : x
  2. Step 2: Convert to fraction form
    65,930.66/98,898.73 = 19,183.54/x
  3. Step 3: Cross multiply
    65,930.66x = 98,898.73 × 19,183.54
  4. Step 4: Simplify right side
    65,930.66x = 1,897,227,742.90
  5. Step 5: Solve for x
    x = 1,897,227,742.90/65,930.66
  6. Step 6: Final answer
    x = 28,776.11

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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.