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Finding the Fourth Proportional to 12,166.76, 18,250.20 and 3,402.44

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Solution

The fourth proportional to 12,166.76, 18,250.20 and 3,402.44 is: 5,103.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,166.76 : 18,250.20 = 3,402.44 : x
  2. Step 2: Convert to fraction form
    12,166.76/18,250.20 = 3,402.44/x
  3. Step 3: Cross multiply
    12,166.76x = 18,250.20 × 3,402.44
  4. Step 4: Simplify right side
    12,166.76x = 62,095,210.49
  5. Step 5: Solve for x
    x = 62,095,210.49/12,166.76
  6. Step 6: Final answer
    x = 5,103.68

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1.5x scale

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.