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Finding the Third Proportional to 4,989,617.72 and 7,294,994.79

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Solution

The third proportional to 4,989,617.72 and 7,294,994.79 is: 10,665,536.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989,617.72 : 7,294,994.79 = 7,294,994.79 : x
  2. Step 2: Convert to fraction form
    4,989,617.72/7,294,994.79 = 7,294,994.79/x
  3. Step 3: Cross multiply
    4,989,617.72x = 7,294,994.79 × 7,294,994.79
  4. Step 4: Simplify right side
    4,989,617.72x = 53,216,948,972,449.03
  5. Step 5: Solve for x
    x = 53,216,948,972,449.03/4,989,617.72
  6. Step 6: Final answer
    x = 10,665,536.31

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.