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Finding the Third Proportional to 64,575,987 and 99,391,500

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Solution

The third proportional to 64,575,987 and 99,391,500 is: 152,977,456.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,575,987 : 99,391,500 = 99,391,500 : x
  2. Step 2: Convert to fraction form
    64,575,987/99,391,500 = 99,391,500/x
  3. Step 3: Cross multiply
    64,575,987x = 99,391,500 × 99,391,500
  4. Step 4: Simplify right side
    64,575,987x = 9,878,670,272,250,000
  5. Step 5: Solve for x
    x = 9,878,670,272,250,000/64,575,987
  6. Step 6: Final answer
    x = 152,977,456.96

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.