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Finding the Fourth Proportional to 14,796.48, 20,418.68 and 8,082

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Solution

The fourth proportional to 14,796.48, 20,418.68 and 8,082 is: 11,152.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,796.48 : 20,418.68 = 8,082 : x
  2. Step 2: Convert to fraction form
    14,796.48/20,418.68 = 8,082/x
  3. Step 3: Cross multiply
    14,796.48x = 20,418.68 × 8,082
  4. Step 4: Simplify right side
    14,796.48x = 165,023,771.76
  5. Step 5: Solve for x
    x = 165,023,771.76/14,796.48
  6. Step 6: Final answer
    x = 11,152.91

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Why These Related Problems?

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