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Finding the Third Proportional to 1,070 and 2,260

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Solution

The third proportional to 1,070 and 2,260 is: 4,773.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070 : 2,260 = 2,260 : x
  2. Step 2: Convert to fraction form
    1,070/2,260 = 2,260/x
  3. Step 3: Cross multiply
    1,070x = 2,260 × 2,260
  4. Step 4: Simplify right side
    1,070x = 5,107,600
  5. Step 5: Solve for x
    x = 5,107,600/1,070
  6. Step 6: Final answer
    x = 4,773.46

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.