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Finding the Third Proportional to 12,760,190 and 28,000,431

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Solution

The third proportional to 12,760,190 and 28,000,431 is: 61,442,982.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,760,190 : 28,000,431 = 28,000,431 : x
  2. Step 2: Convert to fraction form
    12,760,190/28,000,431 = 28,000,431/x
  3. Step 3: Cross multiply
    12,760,190x = 28,000,431 × 28,000,431
  4. Step 4: Simplify right side
    12,760,190x = 784,024,136,185,761
  5. Step 5: Solve for x
    x = 784,024,136,185,761/12,760,190
  6. Step 6: Final answer
    x = 61,442,982.92

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.