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Finding the Third Proportional to 7,948 and 11,678.50

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Solution

The third proportional to 7,948 and 11,678.50 is: 17,159.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,948 : 11,678.50 = 11,678.50 : x
  2. Step 2: Convert to fraction form
    7,948/11,678.50 = 11,678.50/x
  3. Step 3: Cross multiply
    7,948x = 11,678.50 × 11,678.50
  4. Step 4: Simplify right side
    7,948x = 136,387,362.25
  5. Step 5: Solve for x
    x = 136,387,362.25/7,948
  6. Step 6: Final answer
    x = 17,159.96

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.