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Finding the Third Proportional to 7,485.75 and 11,075.63

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Solution

The third proportional to 7,485.75 and 11,075.63 is: 16,387.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.75 : 11,075.63 = 11,075.63 : x
  2. Step 2: Convert to fraction form
    7,485.75/11,075.63 = 11,075.63/x
  3. Step 3: Cross multiply
    7,485.75x = 11,075.63 × 11,075.63
  4. Step 4: Simplify right side
    7,485.75x = 122,669,469.14
  5. Step 5: Solve for x
    x = 122,669,469.14/7,485.75
  6. Step 6: Final answer
    x = 16,387.06

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.