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Finding the Fourth Proportional to 10,913.44, 16,370.16 and 3,995.68

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Solution

The fourth proportional to 10,913.44, 16,370.16 and 3,995.68 is: 5,993.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,913.44 : 16,370.16 = 3,995.68 : x
  2. Step 2: Convert to fraction form
    10,913.44/16,370.16 = 3,995.68/x
  3. Step 3: Cross multiply
    10,913.44x = 16,370.16 × 3,995.68
  4. Step 4: Simplify right side
    10,913.44x = 65,409,920.91
  5. Step 5: Solve for x
    x = 65,409,920.91/10,913.44
  6. Step 6: Final answer
    x = 5,993.52

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Double scale
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Similar ratio
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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.