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Finding the Fourth Proportional to 4,921.99, 6,792.39 and 2,683.88

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Solution

The fourth proportional to 4,921.99, 6,792.39 and 2,683.88 is: 3,703.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.99 : 6,792.39 = 2,683.88 : x
  2. Step 2: Convert to fraction form
    4,921.99/6,792.39 = 2,683.88/x
  3. Step 3: Cross multiply
    4,921.99x = 6,792.39 × 2,683.88
  4. Step 4: Simplify right side
    4,921.99x = 18,229,959.67
  5. Step 5: Solve for x
    x = 18,229,959.67/4,921.99
  6. Step 6: Final answer
    x = 3,703.78

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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.