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Finding the Third Proportional to 4,615.50 and 8,328.75

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Solution

The third proportional to 4,615.50 and 8,328.75 is: 15,029.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,615.50 : 8,328.75 = 8,328.75 : x
  2. Step 2: Convert to fraction form
    4,615.50/8,328.75 = 8,328.75/x
  3. Step 3: Cross multiply
    4,615.50x = 8,328.75 × 8,328.75
  4. Step 4: Simplify right side
    4,615.50x = 69,368,076.56
  5. Step 5: Solve for x
    x = 69,368,076.56/4,615.50
  6. Step 6: Final answer
    x = 15,029.37

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Why These Related Problems?

These problems maintain the same ratio (1.80) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.