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Finding the Fourth Proportional to 5,233.74, 7,215.44 and 3,739.05

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Solution

The fourth proportional to 5,233.74, 7,215.44 and 3,739.05 is: 5,154.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,233.74 : 7,215.44 = 3,739.05 : x
  2. Step 2: Convert to fraction form
    5,233.74/7,215.44 = 3,739.05/x
  3. Step 3: Cross multiply
    5,233.74x = 7,215.44 × 3,739.05
  4. Step 4: Simplify right side
    5,233.74x = 26,978,890.93
  5. Step 5: Solve for x
    x = 26,978,890.93/5,233.74
  6. Step 6: Final answer
    x = 5,154.80

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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.