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Finding the Third Proportional to 5,075 and 7,590

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Solution

The third proportional to 5,075 and 7,590 is: 11,351.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,075 : 7,590 = 7,590 : x
  2. Step 2: Convert to fraction form
    5,075/7,590 = 7,590/x
  3. Step 3: Cross multiply
    5,075x = 7,590 × 7,590
  4. Step 4: Simplify right side
    5,075x = 57,608,100
  5. Step 5: Solve for x
    x = 57,608,100/5,075
  6. Step 6: Final answer
    x = 11,351.35

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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.