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Finding the Fourth Proportional to 18,697,652.45, 25,615,664.34 and 17,998,447.41

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Solution

The fourth proportional to 18,697,652.45, 25,615,664.34 and 17,998,447.41 is: 24,657,757.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,697,652.45 : 25,615,664.34 = 17,998,447.41 : x
  2. Step 2: Convert to fraction form
    18,697,652.45/25,615,664.34 = 17,998,447.41/x
  3. Step 3: Cross multiply
    18,697,652.45x = 25,615,664.34 × 17,998,447.41
  4. Step 4: Simplify right side
    18,697,652.45x = 461,042,187,277,631.88
  5. Step 5: Solve for x
    x = 461,042,187,277,631.88/18,697,652.45
  6. Step 6: Final answer
    x = 24,657,757.90

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.