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Finding the Third Proportional to 580 and 1,566

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Solution

The third proportional to 580 and 1,566 is: 4,228.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    580 : 1,566 = 1,566 : x
  2. Step 2: Convert to fraction form
    580/1,566 = 1,566/x
  3. Step 3: Cross multiply
    580x = 1,566 × 1,566
  4. Step 4: Simplify right side
    580x = 2,452,356
  5. Step 5: Solve for x
    x = 2,452,356/580
  6. Step 6: Final answer
    x = 4,228.20

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Why These Related Problems?

These problems maintain the same ratio (2.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.