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Finding the Fourth Proportional to 3,710.92, 5,118.24 and 3,044.20

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Solution

The fourth proportional to 3,710.92, 5,118.24 and 3,044.20 is: 4,198.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,710.92 : 5,118.24 = 3,044.20 : x
  2. Step 2: Convert to fraction form
    3,710.92/5,118.24 = 3,044.20/x
  3. Step 3: Cross multiply
    3,710.92x = 5,118.24 × 3,044.20
  4. Step 4: Simplify right side
    3,710.92x = 15,580,946.21
  5. Step 5: Solve for x
    x = 15,580,946.21/3,710.92
  6. Step 6: Final answer
    x = 4,198.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.