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Finding the Fourth Proportional to 12,503,997.68, 18,736,627.22 and 8,673,267.62

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Solution

The fourth proportional to 12,503,997.68, 18,736,627.22 and 8,673,267.62 is: 12,996,466.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,503,997.68 : 18,736,627.22 = 8,673,267.62 : x
  2. Step 2: Convert to fraction form
    12,503,997.68/18,736,627.22 = 8,673,267.62/x
  3. Step 3: Cross multiply
    12,503,997.68x = 18,736,627.22 × 8,673,267.62
  4. Step 4: Simplify right side
    12,503,997.68x = 162,507,782,038,187.16
  5. Step 5: Solve for x
    x = 162,507,782,038,187.16/12,503,997.68
  6. Step 6: Final answer
    x = 12,996,466.11

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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.