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Finding the Fourth Proportional to 20,401,751.73, 28,600,243.78 and 20,401,751.73

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Solution

The fourth proportional to 20,401,751.73, 28,600,243.78 and 20,401,751.73 is: 28,600,243.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,401,751.73 : 28,600,243.78 = 20,401,751.73 : x
  2. Step 2: Convert to fraction form
    20,401,751.73/28,600,243.78 = 20,401,751.73/x
  3. Step 3: Cross multiply
    20,401,751.73x = 28,600,243.78 × 20,401,751.73
  4. Step 4: Simplify right side
    20,401,751.73x = 583,495,072,772,026.75
  5. Step 5: Solve for x
    x = 583,495,072,772,026.75/20,401,751.73
  6. Step 6: Final answer
    x = 28,600,243.78

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.