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Finding the Third Proportional to 7,289,627 and 15,661,040

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Solution

The third proportional to 7,289,627 and 15,661,040 is: 33,646,189.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,289,627 : 15,661,040 = 15,661,040 : x
  2. Step 2: Convert to fraction form
    7,289,627/15,661,040 = 15,661,040/x
  3. Step 3: Cross multiply
    7,289,627x = 15,661,040 × 15,661,040
  4. Step 4: Simplify right side
    7,289,627x = 245,268,173,881,600
  5. Step 5: Solve for x
    x = 245,268,173,881,600/7,289,627
  6. Step 6: Final answer
    x = 33,646,189.84

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.