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Finding the Fourth Proportional to 38,745.50, 58,127.98 and 11,043.50

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Solution

The fourth proportional to 38,745.50, 58,127.98 and 11,043.50 is: 16,568.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,745.50 : 58,127.98 = 11,043.50 : x
  2. Step 2: Convert to fraction form
    38,745.50/58,127.98 = 11,043.50/x
  3. Step 3: Cross multiply
    38,745.50x = 58,127.98 × 11,043.50
  4. Step 4: Simplify right side
    38,745.50x = 641,936,347.13
  5. Step 5: Solve for x
    x = 641,936,347.13/38,745.50
  6. Step 6: Final answer
    x = 16,568.02

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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.