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Finding the Third Proportional to 4,055,641.50 and 8,686,989.75

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Solution

The third proportional to 4,055,641.50 and 8,686,989.75 is: 18,607,115.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,055,641.50 : 8,686,989.75 = 8,686,989.75 : x
  2. Step 2: Convert to fraction form
    4,055,641.50/8,686,989.75 = 8,686,989.75/x
  3. Step 3: Cross multiply
    4,055,641.50x = 8,686,989.75 × 8,686,989.75
  4. Step 4: Simplify right side
    4,055,641.50x = 75,463,790,916,605.06
  5. Step 5: Solve for x
    x = 75,463,790,916,605.06/4,055,641.50
  6. Step 6: Final answer
    x = 18,607,115.77

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.