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Finding the Fourth Proportional to 3,958.34, 5,932.35 and 1,615.61

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Solution

The fourth proportional to 3,958.34, 5,932.35 and 1,615.61 is: 2,421.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.34 : 5,932.35 = 1,615.61 : x
  2. Step 2: Convert to fraction form
    3,958.34/5,932.35 = 1,615.61/x
  3. Step 3: Cross multiply
    3,958.34x = 5,932.35 × 1,615.61
  4. Step 4: Simplify right side
    3,958.34x = 9,584,378.81
  5. Step 5: Solve for x
    x = 9,584,378.81/3,958.34
  6. Step 6: Final answer
    x = 2,421.32

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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.