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Finding the Fourth Proportional to 2,741.99, 4,112.97 and 893.10

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Solution

The fourth proportional to 2,741.99, 4,112.97 and 893.10 is: 1,339.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,741.99 : 4,112.97 = 893.10 : x
  2. Step 2: Convert to fraction form
    2,741.99/4,112.97 = 893.10/x
  3. Step 3: Cross multiply
    2,741.99x = 4,112.97 × 893.10
  4. Step 4: Simplify right side
    2,741.99x = 3,673,282.94
  5. Step 5: Solve for x
    x = 3,673,282.94/2,741.99
  6. Step 6: Final answer
    x = 1,339.64

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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.