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Finding the Fourth Proportional to 3,714.15, 5,571.08 and 940.92

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Solution

The fourth proportional to 3,714.15, 5,571.08 and 940.92 is: 1,411.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,714.15 : 5,571.08 = 940.92 : x
  2. Step 2: Convert to fraction form
    3,714.15/5,571.08 = 940.92/x
  3. Step 3: Cross multiply
    3,714.15x = 5,571.08 × 940.92
  4. Step 4: Simplify right side
    3,714.15x = 5,241,942.95
  5. Step 5: Solve for x
    x = 5,241,942.95/3,714.15
  6. Step 6: Final answer
    x = 1,411.34

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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.