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Finding the Third Proportional to 28,082,938 and 39,431,130

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Solution

The third proportional to 28,082,938 and 39,431,130 is: 55,365,076.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,082,938 : 39,431,130 = 39,431,130 : x
  2. Step 2: Convert to fraction form
    28,082,938/39,431,130 = 39,431,130/x
  3. Step 3: Cross multiply
    28,082,938x = 39,431,130 × 39,431,130
  4. Step 4: Simplify right side
    28,082,938x = 1,554,814,013,076,900
  5. Step 5: Solve for x
    x = 1,554,814,013,076,900/28,082,938
  6. Step 6: Final answer
    x = 55,365,076.58

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.