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Finding the Third Proportional to 4,666,920 and 10,130,556

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Solution

The third proportional to 4,666,920 and 10,130,556 is: 21,990,555.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,666,920 : 10,130,556 = 10,130,556 : x
  2. Step 2: Convert to fraction form
    4,666,920/10,130,556 = 10,130,556/x
  3. Step 3: Cross multiply
    4,666,920x = 10,130,556 × 10,130,556
  4. Step 4: Simplify right side
    4,666,920x = 102,628,164,869,136
  5. Step 5: Solve for x
    x = 102,628,164,869,136/4,666,920
  6. Step 6: Final answer
    x = 21,990,555.84

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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.