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Finding the Third Proportional to 39,237,779 and 84,472,312

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Solution

The third proportional to 39,237,779 and 84,472,312 is: 181,854,622.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,237,779 : 84,472,312 = 84,472,312 : x
  2. Step 2: Convert to fraction form
    39,237,779/84,472,312 = 84,472,312/x
  3. Step 3: Cross multiply
    39,237,779x = 84,472,312 × 84,472,312
  4. Step 4: Simplify right side
    39,237,779x = 7,135,571,494,625,344
  5. Step 5: Solve for x
    x = 7,135,571,494,625,344/39,237,779
  6. Step 6: Final answer
    x = 181,854,622.67

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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.