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Finding the Third Proportional to 937 and 1,970.25

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Solution

The third proportional to 937 and 1,970.25 is: 4,142.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    937 : 1,970.25 = 1,970.25 : x
  2. Step 2: Convert to fraction form
    937/1,970.25 = 1,970.25/x
  3. Step 3: Cross multiply
    937x = 1,970.25 × 1,970.25
  4. Step 4: Simplify right side
    937x = 3,881,885.06
  5. Step 5: Solve for x
    x = 3,881,885.06/937
  6. Step 6: Final answer
    x = 4,142.89

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.