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Finding the Fourth Proportional to 62,798.44, 86,676.90 and 47,914.60

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Solution

The fourth proportional to 62,798.44, 86,676.90 and 47,914.60 is: 66,133.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,798.44 : 86,676.90 = 47,914.60 : x
  2. Step 2: Convert to fraction form
    62,798.44/86,676.90 = 47,914.60/x
  3. Step 3: Cross multiply
    62,798.44x = 86,676.90 × 47,914.60
  4. Step 4: Simplify right side
    62,798.44x = 4,153,088,992.74
  5. Step 5: Solve for x
    x = 4,153,088,992.74/62,798.44
  6. Step 6: Final answer
    x = 66,133.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.