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Finding the Third Proportional to 1,258,098,136 and 1,969,284,380

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Solution

The third proportional to 1,258,098,136 and 1,969,284,380 is: 3,082,494,805.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,098,136 : 1,969,284,380 = 1,969,284,380 : x
  2. Step 2: Convert to fraction form
    1,258,098,136/1,969,284,380 = 1,969,284,380/x
  3. Step 3: Cross multiply
    1,258,098,136x = 1,969,284,380 × 1,969,284,380
  4. Step 4: Simplify right side
    1,258,098,136x = 3,878,080,969,311,984,640
  5. Step 5: Solve for x
    x = 3,878,080,969,311,984,640/1,258,098,136
  6. Step 6: Final answer
    x = 3,082,494,805.72

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.