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Finding the Third Proportional to 5,870 and 8,775

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Solution

The third proportional to 5,870 and 8,775 is: 13,117.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,870 : 8,775 = 8,775 : x
  2. Step 2: Convert to fraction form
    5,870/8,775 = 8,775/x
  3. Step 3: Cross multiply
    5,870x = 8,775 × 8,775
  4. Step 4: Simplify right side
    5,870x = 77,000,625
  5. Step 5: Solve for x
    x = 77,000,625/5,870
  6. Step 6: Final answer
    x = 13,117.65

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.