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Finding the Third Proportional to 4,621,557.94 and 9,973,845.56

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Solution

The third proportional to 4,621,557.94 and 9,973,845.56 is: 21,524,688.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,621,557.94 : 9,973,845.56 = 9,973,845.56 : x
  2. Step 2: Convert to fraction form
    4,621,557.94/9,973,845.56 = 9,973,845.56/x
  3. Step 3: Cross multiply
    4,621,557.94x = 9,973,845.56 × 9,973,845.56
  4. Step 4: Simplify right side
    4,621,557.94x = 99,477,595,304,600.94
  5. Step 5: Solve for x
    x = 99,477,595,304,600.94/4,621,557.94
  6. Step 6: Final answer
    x = 21,524,688.57

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.