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Finding the Fourth Proportional to 20,598.67, 30,916.57 and 10,744.87

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Solution

The fourth proportional to 20,598.67, 30,916.57 and 10,744.87 is: 16,126.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,598.67 : 30,916.57 = 10,744.87 : x
  2. Step 2: Convert to fraction form
    20,598.67/30,916.57 = 10,744.87/x
  3. Step 3: Cross multiply
    20,598.67x = 30,916.57 × 10,744.87
  4. Step 4: Simplify right side
    20,598.67x = 332,194,525.50
  5. Step 5: Solve for x
    x = 332,194,525.50/20,598.67
  6. Step 6: Final answer
    x = 16,126.99

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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.