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Finding the Fourth Proportional to 11,116, 16,674.56 and 3,324.88

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Solution

The fourth proportional to 11,116, 16,674.56 and 3,324.88 is: 4,987.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,116 : 16,674.56 = 3,324.88 : x
  2. Step 2: Convert to fraction form
    11,116/16,674.56 = 3,324.88/x
  3. Step 3: Cross multiply
    11,116x = 16,674.56 × 3,324.88
  4. Step 4: Simplify right side
    11,116x = 55,440,911.05
  5. Step 5: Solve for x
    x = 55,440,911.05/11,116
  6. Step 6: Final answer
    x = 4,987.49

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Double scale
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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.