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Finding the Third Proportional to 1,040 and 2,229

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Solution

The third proportional to 1,040 and 2,229 is: 4,777.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040 : 2,229 = 2,229 : x
  2. Step 2: Convert to fraction form
    1,040/2,229 = 2,229/x
  3. Step 3: Cross multiply
    1,040x = 2,229 × 2,229
  4. Step 4: Simplify right side
    1,040x = 4,968,441
  5. Step 5: Solve for x
    x = 4,968,441/1,040
  6. Step 6: Final answer
    x = 4,777.35

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.