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Finding the Third Proportional to 18,864,726 and 40,421,100

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Solution

The third proportional to 18,864,726 and 40,421,100 is: 86,609,544.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,864,726 : 40,421,100 = 40,421,100 : x
  2. Step 2: Convert to fraction form
    18,864,726/40,421,100 = 40,421,100/x
  3. Step 3: Cross multiply
    18,864,726x = 40,421,100 × 40,421,100
  4. Step 4: Simplify right side
    18,864,726x = 1,633,865,325,210,000
  5. Step 5: Solve for x
    x = 1,633,865,325,210,000/18,864,726
  6. Step 6: Final answer
    x = 86,609,544.46

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.