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Finding the Fourth Proportional to 5,279.51, 7,914.04 and 2,501.30

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Solution

The fourth proportional to 5,279.51, 7,914.04 and 2,501.30 is: 3,749.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.51 : 7,914.04 = 2,501.30 : x
  2. Step 2: Convert to fraction form
    5,279.51/7,914.04 = 2,501.30/x
  3. Step 3: Cross multiply
    5,279.51x = 7,914.04 × 2,501.30
  4. Step 4: Simplify right side
    5,279.51x = 19,795,388.25
  5. Step 5: Solve for x
    x = 19,795,388.25/5,279.51
  6. Step 6: Final answer
    x = 3,749.47

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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.