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Finding the Fourth Proportional to 58,890, 81,269.01 and 33,739.50

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Solution

The fourth proportional to 58,890, 81,269.01 and 33,739.50 is: 46,560.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,890 : 81,269.01 = 33,739.50 : x
  2. Step 2: Convert to fraction form
    58,890/81,269.01 = 33,739.50/x
  3. Step 3: Cross multiply
    58,890x = 81,269.01 × 33,739.50
  4. Step 4: Simplify right side
    58,890x = 2,741,975,762.90
  5. Step 5: Solve for x
    x = 2,741,975,762.90/58,890
  6. Step 6: Final answer
    x = 46,560.97

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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.