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Finding the Fourth Proportional to 61,369.85, 92,044.32 and 16,986.21

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Solution

The fourth proportional to 61,369.85, 92,044.32 and 16,986.21 is: 25,476.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,369.85 : 92,044.32 = 16,986.21 : x
  2. Step 2: Convert to fraction form
    61,369.85/92,044.32 = 16,986.21/x
  3. Step 3: Cross multiply
    61,369.85x = 92,044.32 × 16,986.21
  4. Step 4: Simplify right side
    61,369.85x = 1,563,483,739.96
  5. Step 5: Solve for x
    x = 1,563,483,739.96/61,369.85
  6. Step 6: Final answer
    x = 25,476.41

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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.