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Finding the Fourth Proportional to 2,592.90, 3,889.32 and 949.41

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Solution

The fourth proportional to 2,592.90, 3,889.32 and 949.41 is: 1,424.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,592.90 : 3,889.32 = 949.41 : x
  2. Step 2: Convert to fraction form
    2,592.90/3,889.32 = 949.41/x
  3. Step 3: Cross multiply
    2,592.90x = 3,889.32 × 949.41
  4. Step 4: Simplify right side
    2,592.90x = 3,692,559.30
  5. Step 5: Solve for x
    x = 3,692,559.30/2,592.90
  6. Step 6: Final answer
    x = 1,424.10

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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.