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Finding the Fourth Proportional to 7,362.18, 11,043 and 1,815.54

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Solution

The fourth proportional to 7,362.18, 11,043 and 1,815.54 is: 2,723.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,362.18 : 11,043 = 1,815.54 : x
  2. Step 2: Convert to fraction form
    7,362.18/11,043 = 1,815.54/x
  3. Step 3: Cross multiply
    7,362.18x = 11,043 × 1,815.54
  4. Step 4: Simplify right side
    7,362.18x = 20,049,008.22
  5. Step 5: Solve for x
    x = 20,049,008.22/7,362.18
  6. Step 6: Final answer
    x = 2,723.24

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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.