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Finding the Fourth Proportional to 7,321.42, 10,103.15 and 4,337.54

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Solution

The fourth proportional to 7,321.42, 10,103.15 and 4,337.54 is: 5,985.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.42 : 10,103.15 = 4,337.54 : x
  2. Step 2: Convert to fraction form
    7,321.42/10,103.15 = 4,337.54/x
  3. Step 3: Cross multiply
    7,321.42x = 10,103.15 × 4,337.54
  4. Step 4: Simplify right side
    7,321.42x = 43,822,817.25
  5. Step 5: Solve for x
    x = 43,822,817.25/7,321.42
  6. Step 6: Final answer
    x = 5,985.56

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