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Finding the Third Proportional to 7,766 and 12,303

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Solution

The third proportional to 7,766 and 12,303 is: 19,490.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,766 : 12,303 = 12,303 : x
  2. Step 2: Convert to fraction form
    7,766/12,303 = 12,303/x
  3. Step 3: Cross multiply
    7,766x = 12,303 × 12,303
  4. Step 4: Simplify right side
    7,766x = 151,363,809
  5. Step 5: Solve for x
    x = 151,363,809/7,766
  6. Step 6: Final answer
    x = 19,490.58

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.