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Finding the Fourth Proportional to 13,316.52, 19,974.06 and 4,082.52

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Solution

The fourth proportional to 13,316.52, 19,974.06 and 4,082.52 is: 6,123.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.52 : 19,974.06 = 4,082.52 : x
  2. Step 2: Convert to fraction form
    13,316.52/19,974.06 = 4,082.52/x
  3. Step 3: Cross multiply
    13,316.52x = 19,974.06 × 4,082.52
  4. Step 4: Simplify right side
    13,316.52x = 81,544,499.43
  5. Step 5: Solve for x
    x = 81,544,499.43/13,316.52
  6. Step 6: Final answer
    x = 6,123.56

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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.