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Finding the Fourth Proportional to 11,068.40, 16,604.40 and 4,143.44

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Solution

The fourth proportional to 11,068.40, 16,604.40 and 4,143.44 is: 6,215.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,068.40 : 16,604.40 = 4,143.44 : x
  2. Step 2: Convert to fraction form
    11,068.40/16,604.40 = 4,143.44/x
  3. Step 3: Cross multiply
    11,068.40x = 16,604.40 × 4,143.44
  4. Step 4: Simplify right side
    11,068.40x = 68,799,335.14
  5. Step 5: Solve for x
    x = 68,799,335.14/11,068.40
  6. Step 6: Final answer
    x = 6,215.83

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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.