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Finding the Fourth Proportional to 5,623.76, 7,760.76 and 3,266.48

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Solution

The fourth proportional to 5,623.76, 7,760.76 and 3,266.48 is: 4,507.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,623.76 : 7,760.76 = 3,266.48 : x
  2. Step 2: Convert to fraction form
    5,623.76/7,760.76 = 3,266.48/x
  3. Step 3: Cross multiply
    5,623.76x = 7,760.76 × 3,266.48
  4. Step 4: Simplify right side
    5,623.76x = 25,350,367.32
  5. Step 5: Solve for x
    x = 25,350,367.32/5,623.76
  6. Step 6: Final answer
    x = 4,507.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.