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Finding the Fourth Proportional to 2,577.74, 3,865.95 and 996.14

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Solution

The fourth proportional to 2,577.74, 3,865.95 and 996.14 is: 1,493.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,577.74 : 3,865.95 = 996.14 : x
  2. Step 2: Convert to fraction form
    2,577.74/3,865.95 = 996.14/x
  3. Step 3: Cross multiply
    2,577.74x = 3,865.95 × 996.14
  4. Step 4: Simplify right side
    2,577.74x = 3,851,008.10
  5. Step 5: Solve for x
    x = 3,851,008.10/2,577.74
  6. Step 6: Final answer
    x = 1,493.95

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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.