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Finding the Third Proportional to 3,615 and 7,471.50

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Solution

The third proportional to 3,615 and 7,471.50 is: 15,442.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615 : 7,471.50 = 7,471.50 : x
  2. Step 2: Convert to fraction form
    3,615/7,471.50 = 7,471.50/x
  3. Step 3: Cross multiply
    3,615x = 7,471.50 × 7,471.50
  4. Step 4: Simplify right side
    3,615x = 55,823,312.25
  5. Step 5: Solve for x
    x = 55,823,312.25/3,615
  6. Step 6: Final answer
    x = 15,442.13

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.