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Finding the Third Proportional to 12,997,473 and 20,241,508

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Solution

The third proportional to 12,997,473 and 20,241,508 is: 31,522,946.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,997,473 : 20,241,508 = 20,241,508 : x
  2. Step 2: Convert to fraction form
    12,997,473/20,241,508 = 20,241,508/x
  3. Step 3: Cross multiply
    12,997,473x = 20,241,508 × 20,241,508
  4. Step 4: Simplify right side
    12,997,473x = 409,718,646,114,064
  5. Step 5: Solve for x
    x = 409,718,646,114,064/12,997,473
  6. Step 6: Final answer
    x = 31,522,946.51

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.