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Finding the Third Proportional to 4,045,194 and 8,690,709

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Solution

The third proportional to 4,045,194 and 8,690,709 is: 18,671,149.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,045,194 : 8,690,709 = 8,690,709 : x
  2. Step 2: Convert to fraction form
    4,045,194/8,690,709 = 8,690,709/x
  3. Step 3: Cross multiply
    4,045,194x = 8,690,709 × 8,690,709
  4. Step 4: Simplify right side
    4,045,194x = 75,528,422,922,681
  5. Step 5: Solve for x
    x = 75,528,422,922,681/4,045,194
  6. Step 6: Final answer
    x = 18,671,149.75

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.