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Finding the Third Proportional to 21,399,888 and 46,290,240

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Solution

The third proportional to 21,399,888 and 46,290,240 is: 100,130,725.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,399,888 : 46,290,240 = 46,290,240 : x
  2. Step 2: Convert to fraction form
    21,399,888/46,290,240 = 46,290,240/x
  3. Step 3: Cross multiply
    21,399,888x = 46,290,240 × 46,290,240
  4. Step 4: Simplify right side
    21,399,888x = 2,142,786,319,257,600
  5. Step 5: Solve for x
    x = 2,142,786,319,257,600/21,399,888
  6. Step 6: Final answer
    x = 100,130,725.88

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.