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Finding the Fourth Proportional to 15,806.85, 23,711.18 and 5,946.21

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Solution

The fourth proportional to 15,806.85, 23,711.18 and 5,946.21 is: 8,919.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,806.85 : 23,711.18 = 5,946.21 : x
  2. Step 2: Convert to fraction form
    15,806.85/23,711.18 = 5,946.21/x
  3. Step 3: Cross multiply
    15,806.85x = 23,711.18 × 5,946.21
  4. Step 4: Simplify right side
    15,806.85x = 140,991,655.63
  5. Step 5: Solve for x
    x = 140,991,655.63/15,806.85
  6. Step 6: Final answer
    x = 8,919.66

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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.