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Finding the Third Proportional to 3,076 and 4,886

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Solution

The third proportional to 3,076 and 4,886 is: 7,761.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,076 : 4,886 = 4,886 : x
  2. Step 2: Convert to fraction form
    3,076/4,886 = 4,886/x
  3. Step 3: Cross multiply
    3,076x = 4,886 × 4,886
  4. Step 4: Simplify right side
    3,076x = 23,872,996
  5. Step 5: Solve for x
    x = 23,872,996/3,076
  6. Step 6: Final answer
    x = 7,761.05

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.