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Finding the Third Proportional to 18,043,697,961 and 37,572,315,939

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Solution

The third proportional to 18,043,697,961 and 37,572,315,939 is: 78,236,674,548.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,043,697,961 : 37,572,315,939 = 37,572,315,939 : x
  2. Step 2: Convert to fraction form
    18,043,697,961/37,572,315,939 = 37,572,315,939/x
  3. Step 3: Cross multiply
    18,043,697,961x = 37,572,315,939 × 37,572,315,939
  4. Step 4: Simplify right side
    18,043,697,961x = 1,411,678,925,020,033,449,984
  5. Step 5: Solve for x
    x = 1,411,678,925,020,033,449,984/18,043,697,961
  6. Step 6: Final answer
    x = 78,236,674,548.16

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.