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Finding the Third Proportional to 5,670 and 7,722.56

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Solution

The third proportional to 5,670 and 7,722.56 is: 10,518.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,670 : 7,722.56 = 7,722.56 : x
  2. Step 2: Convert to fraction form
    5,670/7,722.56 = 7,722.56/x
  3. Step 3: Cross multiply
    5,670x = 7,722.56 × 7,722.56
  4. Step 4: Simplify right side
    5,670x = 59,637,971.57
  5. Step 5: Solve for x
    x = 59,637,971.57/5,670
  6. Step 6: Final answer
    x = 10,518.16

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.