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Finding the Fourth Proportional to 11,112.99, 16,669.49 and 4,452.49

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Solution

The fourth proportional to 11,112.99, 16,669.49 and 4,452.49 is: 6,678.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,112.99 : 16,669.49 = 4,452.49 : x
  2. Step 2: Convert to fraction form
    11,112.99/16,669.49 = 4,452.49/x
  3. Step 3: Cross multiply
    11,112.99x = 16,669.49 × 4,452.49
  4. Step 4: Simplify right side
    11,112.99x = 74,220,737.53
  5. Step 5: Solve for x
    x = 74,220,737.53/11,112.99
  6. Step 6: Final answer
    x = 6,678.74

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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.