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Finding the Fourth Proportional to 7,503, 11,254.50 and 2,031

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Solution

The fourth proportional to 7,503, 11,254.50 and 2,031 is: 3,046.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,503 : 11,254.50 = 2,031 : x
  2. Step 2: Convert to fraction form
    7,503/11,254.50 = 2,031/x
  3. Step 3: Cross multiply
    7,503x = 11,254.50 × 2,031
  4. Step 4: Simplify right side
    7,503x = 22,857,889.50
  5. Step 5: Solve for x
    x = 22,857,889.50/7,503
  6. Step 6: Final answer
    x = 3,046.50

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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.