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Finding the Fourth Proportional to 57,812.67, 86,718.92 and 16,259.67

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Solution

The fourth proportional to 57,812.67, 86,718.92 and 16,259.67 is: 24,389.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,812.67 : 86,718.92 = 16,259.67 : x
  2. Step 2: Convert to fraction form
    57,812.67/86,718.92 = 16,259.67/x
  3. Step 3: Cross multiply
    57,812.67x = 86,718.92 × 16,259.67
  4. Step 4: Simplify right side
    57,812.67x = 1,410,020,940.66
  5. Step 5: Solve for x
    x = 1,410,020,940.66/57,812.67
  6. Step 6: Final answer
    x = 24,389.48

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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.