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Finding the Third Proportional to 4,391,648.44 and 9,516,278.81

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Solution

The third proportional to 4,391,648.44 and 9,516,278.81 is: 20,620,858.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,391,648.44 : 9,516,278.81 = 9,516,278.81 : x
  2. Step 2: Convert to fraction form
    4,391,648.44/9,516,278.81 = 9,516,278.81/x
  3. Step 3: Cross multiply
    4,391,648.44x = 9,516,278.81 × 9,516,278.81
  4. Step 4: Simplify right side
    4,391,648.44x = 90,559,562,437,236.41
  5. Step 5: Solve for x
    x = 90,559,562,437,236.41/4,391,648.44
  6. Step 6: Final answer
    x = 20,620,858.82

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.