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Finding the Fourth Proportional to 7,311.24, 10,087.02 and 4,165.20

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Solution

The fourth proportional to 7,311.24, 10,087.02 and 4,165.20 is: 5,746.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,311.24 : 10,087.02 = 4,165.20 : x
  2. Step 2: Convert to fraction form
    7,311.24/10,087.02 = 4,165.20/x
  3. Step 3: Cross multiply
    7,311.24x = 10,087.02 × 4,165.20
  4. Step 4: Simplify right side
    7,311.24x = 42,014,455.70
  5. Step 5: Solve for x
    x = 42,014,455.70/7,311.24
  6. Step 6: Final answer
    x = 5,746.56

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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.