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Finding the Fourth Proportional to 47,290.78, 70,936.87 and 14,014.22

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Solution

The fourth proportional to 47,290.78, 70,936.87 and 14,014.22 is: 21,021.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,290.78 : 70,936.87 = 14,014.22 : x
  2. Step 2: Convert to fraction form
    47,290.78/70,936.87 = 14,014.22/x
  3. Step 3: Cross multiply
    47,290.78x = 70,936.87 × 14,014.22
  4. Step 4: Simplify right side
    47,290.78x = 994,124,902.29
  5. Step 5: Solve for x
    x = 994,124,902.29/47,290.78
  6. Step 6: Final answer
    x = 21,021.54

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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.