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Finding the Third Proportional to 3,556 and 5,681

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Solution

The third proportional to 3,556 and 5,681 is: 9,075.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,556 : 5,681 = 5,681 : x
  2. Step 2: Convert to fraction form
    3,556/5,681 = 5,681/x
  3. Step 3: Cross multiply
    3,556x = 5,681 × 5,681
  4. Step 4: Simplify right side
    3,556x = 32,273,761
  5. Step 5: Solve for x
    x = 32,273,761/3,556
  6. Step 6: Final answer
    x = 9,075.86

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.