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Finding the Third Proportional to 7,710 and 16,590

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Solution

The third proportional to 7,710 and 16,590 is: 35,697.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,710 : 16,590 = 16,590 : x
  2. Step 2: Convert to fraction form
    7,710/16,590 = 16,590/x
  3. Step 3: Cross multiply
    7,710x = 16,590 × 16,590
  4. Step 4: Simplify right side
    7,710x = 275,228,100
  5. Step 5: Solve for x
    x = 275,228,100/7,710
  6. Step 6: Final answer
    x = 35,697.55

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.