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Finding the Third Proportional to 975 and 2,069.63

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Solution

The third proportional to 975 and 2,069.63 is: 4,393.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    975 : 2,069.63 = 2,069.63 : x
  2. Step 2: Convert to fraction form
    975/2,069.63 = 2,069.63/x
  3. Step 3: Cross multiply
    975x = 2,069.63 × 2,069.63
  4. Step 4: Simplify right side
    975x = 4,283,347.64
  5. Step 5: Solve for x
    x = 4,283,347.64/975
  6. Step 6: Final answer
    x = 4,393.18

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.