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Finding the Fourth Proportional to 65,993.76, 98,982.60 and 19,246.68

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Solution

The fourth proportional to 65,993.76, 98,982.60 and 19,246.68 is: 28,867.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,993.76 : 98,982.60 = 19,246.68 : x
  2. Step 2: Convert to fraction form
    65,993.76/98,982.60 = 19,246.68/x
  3. Step 3: Cross multiply
    65,993.76x = 98,982.60 × 19,246.68
  4. Step 4: Simplify right side
    65,993.76x = 1,905,086,427.77
  5. Step 5: Solve for x
    x = 1,905,086,427.77/65,993.76
  6. Step 6: Final answer
    x = 28,867.68

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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.