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Finding the Third Proportional to 12,872,128 and 19,085,544

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Solution

The third proportional to 12,872,128 and 19,085,544 is: 28,298,195.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,872,128 : 19,085,544 = 19,085,544 : x
  2. Step 2: Convert to fraction form
    12,872,128/19,085,544 = 19,085,544/x
  3. Step 3: Cross multiply
    12,872,128x = 19,085,544 × 19,085,544
  4. Step 4: Simplify right side
    12,872,128x = 364,257,989,775,936
  5. Step 5: Solve for x
    x = 364,257,989,775,936/12,872,128
  6. Step 6: Final answer
    x = 28,298,195.12

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.