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Finding the Third Proportional to 25,640,820 and 39,649,176

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Solution

The third proportional to 25,640,820 and 39,649,176 is: 61,310,720.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,640,820 : 39,649,176 = 39,649,176 : x
  2. Step 2: Convert to fraction form
    25,640,820/39,649,176 = 39,649,176/x
  3. Step 3: Cross multiply
    25,640,820x = 39,649,176 × 39,649,176
  4. Step 4: Simplify right side
    25,640,820x = 1,572,057,157,478,976
  5. Step 5: Solve for x
    x = 1,572,057,157,478,976/25,640,820
  6. Step 6: Final answer
    x = 61,310,720.85

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.