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Finding the Third Proportional to 4,430,924 and 6,638,990

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Solution

The third proportional to 4,430,924 and 6,638,990 is: 9,947,403.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,430,924 : 6,638,990 = 6,638,990 : x
  2. Step 2: Convert to fraction form
    4,430,924/6,638,990 = 6,638,990/x
  3. Step 3: Cross multiply
    4,430,924x = 6,638,990 × 6,638,990
  4. Step 4: Simplify right side
    4,430,924x = 44,076,188,220,100
  5. Step 5: Solve for x
    x = 44,076,188,220,100/4,430,924
  6. Step 6: Final answer
    x = 9,947,403.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.