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Finding the Fourth Proportional to 4,928.18, 7,401.08 and 4,729.98

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Solution

The fourth proportional to 4,928.18, 7,401.08 and 4,729.98 is: 7,103.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,928.18 : 7,401.08 = 4,729.98 : x
  2. Step 2: Convert to fraction form
    4,928.18/7,401.08 = 4,729.98/x
  3. Step 3: Cross multiply
    4,928.18x = 7,401.08 × 4,729.98
  4. Step 4: Simplify right side
    4,928.18x = 35,006,972.20
  5. Step 5: Solve for x
    x = 35,006,972.20/4,928.18
  6. Step 6: Final answer
    x = 7,103.42

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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.