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Finding the Third Proportional to 19,891,220 and 43,480,210

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Solution

The third proportional to 19,891,220 and 43,480,210 is: 95,043,373.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,891,220 : 43,480,210 = 43,480,210 : x
  2. Step 2: Convert to fraction form
    19,891,220/43,480,210 = 43,480,210/x
  3. Step 3: Cross multiply
    19,891,220x = 43,480,210 × 43,480,210
  4. Step 4: Simplify right side
    19,891,220x = 1,890,528,661,644,100
  5. Step 5: Solve for x
    x = 1,890,528,661,644,100/19,891,220
  6. Step 6: Final answer
    x = 95,043,373.99

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.