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Finding the Fourth Proportional to 65,394.50, 98,092.66 and 18,647.38

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Solution

The fourth proportional to 65,394.50, 98,092.66 and 18,647.38 is: 27,971.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,394.50 : 98,092.66 = 18,647.38 : x
  2. Step 2: Convert to fraction form
    65,394.50/98,092.66 = 18,647.38/x
  3. Step 3: Cross multiply
    65,394.50x = 98,092.66 × 18,647.38
  4. Step 4: Simplify right side
    65,394.50x = 1,829,170,615.77
  5. Step 5: Solve for x
    x = 1,829,170,615.77/65,394.50
  6. Step 6: Final answer
    x = 27,971.32

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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.