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Finding the Fourth Proportional to 65,362.89, 98,060.73 and 18,615.75

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Solution

The fourth proportional to 65,362.89, 98,060.73 and 18,615.75 is: 27,928.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,362.89 : 98,060.73 = 18,615.75 : x
  2. Step 2: Convert to fraction form
    65,362.89/98,060.73 = 18,615.75/x
  3. Step 3: Cross multiply
    65,362.89x = 98,060.73 × 18,615.75
  4. Step 4: Simplify right side
    65,362.89x = 1,825,474,034.50
  5. Step 5: Solve for x
    x = 1,825,474,034.50/65,362.89
  6. Step 6: Final answer
    x = 27,928.29

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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.