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Finding the Third Proportional to 1,587 and 2,913

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Solution

The third proportional to 1,587 and 2,913 is: 5,346.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587 : 2,913 = 2,913 : x
  2. Step 2: Convert to fraction form
    1,587/2,913 = 2,913/x
  3. Step 3: Cross multiply
    1,587x = 2,913 × 2,913
  4. Step 4: Simplify right side
    1,587x = 8,485,569
  5. Step 5: Solve for x
    x = 8,485,569/1,587
  6. Step 6: Final answer
    x = 5,346.92

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Why These Related Problems?

These problems maintain the same ratio (1.84) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.