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Finding the Fourth Proportional to 65,365.01, 98,063.86 and 18,617.88

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Solution

The fourth proportional to 65,365.01, 98,063.86 and 18,617.88 is: 27,931.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,365.01 : 98,063.86 = 18,617.88 : x
  2. Step 2: Convert to fraction form
    65,365.01/98,063.86 = 18,617.88/x
  3. Step 3: Cross multiply
    65,365.01x = 98,063.86 × 18,617.88
  4. Step 4: Simplify right side
    65,365.01x = 1,825,741,177.82
  5. Step 5: Solve for x
    x = 1,825,741,177.82/65,365.01
  6. Step 6: Final answer
    x = 27,931.48

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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.