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Finding the Fourth Proportional to 2,976.01, 4,458.54 and 2,647.96

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Solution

The fourth proportional to 2,976.01, 4,458.54 and 2,647.96 is: 3,967.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976.01 : 4,458.54 = 2,647.96 : x
  2. Step 2: Convert to fraction form
    2,976.01/4,458.54 = 2,647.96/x
  3. Step 3: Cross multiply
    2,976.01x = 4,458.54 × 2,647.96
  4. Step 4: Simplify right side
    2,976.01x = 11,806,034.36
  5. Step 5: Solve for x
    x = 11,806,034.36/2,976.01
  6. Step 6: Final answer
    x = 3,967.07

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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.