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Finding the Fourth Proportional to 18,456,722.70, 27,685,084.05 and 18,456,722.70

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Solution

The fourth proportional to 18,456,722.70, 27,685,084.05 and 18,456,722.70 is: 27,685,084.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,456,722.70 : 27,685,084.05 = 18,456,722.70 : x
  2. Step 2: Convert to fraction form
    18,456,722.70/27,685,084.05 = 18,456,722.70/x
  3. Step 3: Cross multiply
    18,456,722.70x = 27,685,084.05 × 18,456,722.70
  4. Step 4: Simplify right side
    18,456,722.70x = 510,975,919,237,042.94
  5. Step 5: Solve for x
    x = 510,975,919,237,042.94/18,456,722.70
  6. Step 6: Final answer
    x = 27,685,084.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.