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Finding the Third Proportional to 36,573,890 and 79,452,664

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Solution

The third proportional to 36,573,890 and 79,452,664 is: 172,601,979.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,573,890 : 79,452,664 = 79,452,664 : x
  2. Step 2: Convert to fraction form
    36,573,890/79,452,664 = 79,452,664/x
  3. Step 3: Cross multiply
    36,573,890x = 79,452,664 × 79,452,664
  4. Step 4: Simplify right side
    36,573,890x = 6,312,725,816,696,896
  5. Step 5: Solve for x
    x = 6,312,725,816,696,896/36,573,890
  6. Step 6: Final answer
    x = 172,601,979.63

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.