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Finding the Third Proportional to 7,485.75 and 10,823.63

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Solution

The third proportional to 7,485.75 and 10,823.63 is: 15,649.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.75 : 10,823.63 = 10,823.63 : x
  2. Step 2: Convert to fraction form
    7,485.75/10,823.63 = 10,823.63/x
  3. Step 3: Cross multiply
    7,485.75x = 10,823.63 × 10,823.63
  4. Step 4: Simplify right side
    7,485.75x = 117,150,858.14
  5. Step 5: Solve for x
    x = 117,150,858.14/7,485.75
  6. Step 6: Final answer
    x = 15,649.85

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.