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Finding the Fourth Proportional to 2,593.92, 3,889.68 and 949.36

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Solution

The fourth proportional to 2,593.92, 3,889.68 and 949.36 is: 1,423.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,593.92 : 3,889.68 = 949.36 : x
  2. Step 2: Convert to fraction form
    2,593.92/3,889.68 = 949.36/x
  3. Step 3: Cross multiply
    2,593.92x = 3,889.68 × 949.36
  4. Step 4: Simplify right side
    2,593.92x = 3,692,706.60
  5. Step 5: Solve for x
    x = 3,692,706.60/2,593.92
  6. Step 6: Final answer
    x = 1,423.60

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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.