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Finding the Third Proportional to 1,186 and 1,569

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Solution

The third proportional to 1,186 and 1,569 is: 2,075.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186 : 1,569 = 1,569 : x
  2. Step 2: Convert to fraction form
    1,186/1,569 = 1,569/x
  3. Step 3: Cross multiply
    1,186x = 1,569 × 1,569
  4. Step 4: Simplify right side
    1,186x = 2,461,761
  5. Step 5: Solve for x
    x = 2,461,761/1,186
  6. Step 6: Final answer
    x = 2,075.68

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.