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Finding the Fourth Proportional to 28,783.76, 39,724.43 and 16,846.38

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Solution

The fourth proportional to 28,783.76, 39,724.43 and 16,846.38 is: 23,249.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,783.76 : 39,724.43 = 16,846.38 : x
  2. Step 2: Convert to fraction form
    28,783.76/39,724.43 = 16,846.38/x
  3. Step 3: Cross multiply
    28,783.76x = 39,724.43 × 16,846.38
  4. Step 4: Simplify right side
    28,783.76x = 669,212,758.83
  5. Step 5: Solve for x
    x = 669,212,758.83/28,783.76
  6. Step 6: Final answer
    x = 23,249.67

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