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Finding the Fourth Proportional to 2,675.46, 4,012.74 and 727.23

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Solution

The fourth proportional to 2,675.46, 4,012.74 and 727.23 is: 1,090.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,675.46 : 4,012.74 = 727.23 : x
  2. Step 2: Convert to fraction form
    2,675.46/4,012.74 = 727.23/x
  3. Step 3: Cross multiply
    2,675.46x = 4,012.74 × 727.23
  4. Step 4: Simplify right side
    2,675.46x = 2,918,184.91
  5. Step 5: Solve for x
    x = 2,918,184.91/2,675.46
  6. Step 6: Final answer
    x = 1,090.72

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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.