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Finding the Third Proportional to 1,698 and 3,076

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Solution

The third proportional to 1,698 and 3,076 is: 5,572.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,698 : 3,076 = 3,076 : x
  2. Step 2: Convert to fraction form
    1,698/3,076 = 3,076/x
  3. Step 3: Cross multiply
    1,698x = 3,076 × 3,076
  4. Step 4: Simplify right side
    1,698x = 9,461,776
  5. Step 5: Solve for x
    x = 9,461,776/1,698
  6. Step 6: Final answer
    x = 5,572.31

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Why These Related Problems?

These problems maintain the same ratio (1.81) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.