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Finding the Third Proportional to 15,690,543 and 36,640,090

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Solution

The third proportional to 15,690,543 and 36,640,090 is: 85,560,849.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,690,543 : 36,640,090 = 36,640,090 : x
  2. Step 2: Convert to fraction form
    15,690,543/36,640,090 = 36,640,090/x
  3. Step 3: Cross multiply
    15,690,543x = 36,640,090 × 36,640,090
  4. Step 4: Simplify right side
    15,690,543x = 1,342,496,195,208,100
  5. Step 5: Solve for x
    x = 1,342,496,195,208,100/15,690,543
  6. Step 6: Final answer
    x = 85,560,849.95

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.