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Finding the Fourth Proportional to 29,319.81, 43,978.77 and 16,800.99

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Solution

The fourth proportional to 29,319.81, 43,978.77 and 16,800.99 is: 25,200.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,319.81 : 43,978.77 = 16,800.99 : x
  2. Step 2: Convert to fraction form
    29,319.81/43,978.77 = 16,800.99/x
  3. Step 3: Cross multiply
    29,319.81x = 43,978.77 × 16,800.99
  4. Step 4: Simplify right side
    29,319.81x = 738,886,874.98
  5. Step 5: Solve for x
    x = 738,886,874.98/29,319.81
  6. Step 6: Final answer
    x = 25,200.94

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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.