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Finding the Fourth Proportional to 7,458.56, 11,187.72 and 3,354.56

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Solution

The fourth proportional to 7,458.56, 11,187.72 and 3,354.56 is: 5,031.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,458.56 : 11,187.72 = 3,354.56 : x
  2. Step 2: Convert to fraction form
    7,458.56/11,187.72 = 3,354.56/x
  3. Step 3: Cross multiply
    7,458.56x = 11,187.72 × 3,354.56
  4. Step 4: Simplify right side
    7,458.56x = 37,529,878.00
  5. Step 5: Solve for x
    x = 37,529,878.00/7,458.56
  6. Step 6: Final answer
    x = 5,031.79

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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.