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Finding the Fourth Proportional to 61,283.87, 91,931.10 and 16,910.62

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Solution

The fourth proportional to 61,283.87, 91,931.10 and 16,910.62 is: 25,367.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,283.87 : 91,931.10 = 16,910.62 : x
  2. Step 2: Convert to fraction form
    61,283.87/91,931.10 = 16,910.62/x
  3. Step 3: Cross multiply
    61,283.87x = 91,931.10 × 16,910.62
  4. Step 4: Simplify right side
    61,283.87x = 1,554,612,217.27
  5. Step 5: Solve for x
    x = 1,554,612,217.27/61,283.87
  6. Step 6: Final answer
    x = 25,367.40

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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.