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Finding the Fourth Proportional to 65,986.02, 98,982.54 and 19,242.54

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Solution

The fourth proportional to 65,986.02, 98,982.54 and 19,242.54 is: 28,864.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,986.02 : 98,982.54 = 19,242.54 : x
  2. Step 2: Convert to fraction form
    65,986.02/98,982.54 = 19,242.54/x
  3. Step 3: Cross multiply
    65,986.02x = 98,982.54 × 19,242.54
  4. Step 4: Simplify right side
    65,986.02x = 1,904,675,485.25
  5. Step 5: Solve for x
    x = 1,904,675,485.25/65,986.02
  6. Step 6: Final answer
    x = 28,864.83

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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.