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Finding the Third Proportional to 1,716 and 3,698.50

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Solution

The third proportional to 1,716 and 3,698.50 is: 7,971.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,716 : 3,698.50 = 3,698.50 : x
  2. Step 2: Convert to fraction form
    1,716/3,698.50 = 3,698.50/x
  3. Step 3: Cross multiply
    1,716x = 3,698.50 × 3,698.50
  4. Step 4: Simplify right side
    1,716x = 13,678,902.25
  5. Step 5: Solve for x
    x = 13,678,902.25/1,716
  6. Step 6: Final answer
    x = 7,971.39

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.