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Finding the Fourth Proportional to 61,344.90, 92,017.08 and 16,971.21

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Solution

The fourth proportional to 61,344.90, 92,017.08 and 16,971.21 is: 25,456.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,344.90 : 92,017.08 = 16,971.21 : x
  2. Step 2: Convert to fraction form
    61,344.90/92,017.08 = 16,971.21/x
  3. Step 3: Cross multiply
    61,344.90x = 92,017.08 × 16,971.21
  4. Step 4: Simplify right side
    61,344.90x = 1,561,641,188.27
  5. Step 5: Solve for x
    x = 1,561,641,188.27/61,344.90
  6. Step 6: Final answer
    x = 25,456.74

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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.