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Finding the Fourth Proportional to 16,927.24, 25,389.90 and 5,241.40

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Solution

The fourth proportional to 16,927.24, 25,389.90 and 5,241.40 is: 7,861.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,927.24 : 25,389.90 = 5,241.40 : x
  2. Step 2: Convert to fraction form
    16,927.24/25,389.90 = 5,241.40/x
  3. Step 3: Cross multiply
    16,927.24x = 25,389.90 × 5,241.40
  4. Step 4: Simplify right side
    16,927.24x = 133,078,621.86
  5. Step 5: Solve for x
    x = 133,078,621.86/16,927.24
  6. Step 6: Final answer
    x = 7,861.80

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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.