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Finding the Third Proportional to 4,222,354.50 and 6,988,639.50

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Solution

The third proportional to 4,222,354.50 and 6,988,639.50 is: 11,567,262.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,222,354.50 : 6,988,639.50 = 6,988,639.50 : x
  2. Step 2: Convert to fraction form
    4,222,354.50/6,988,639.50 = 6,988,639.50/x
  3. Step 3: Cross multiply
    4,222,354.50x = 6,988,639.50 × 6,988,639.50
  4. Step 4: Simplify right side
    4,222,354.50x = 48,841,082,060,960.25
  5. Step 5: Solve for x
    x = 48,841,082,060,960.25/4,222,354.50
  6. Step 6: Final answer
    x = 11,567,262.31

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.