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Finding the Fourth Proportional to 11,201.95, 16,806.57 and 5,359

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Solution

The fourth proportional to 11,201.95, 16,806.57 and 5,359 is: 8,040.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,201.95 : 16,806.57 = 5,359 : x
  2. Step 2: Convert to fraction form
    11,201.95/16,806.57 = 5,359/x
  3. Step 3: Cross multiply
    11,201.95x = 16,806.57 × 5,359
  4. Step 4: Simplify right side
    11,201.95x = 90,066,408.63
  5. Step 5: Solve for x
    x = 90,066,408.63/11,201.95
  6. Step 6: Final answer
    x = 8,040.24

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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.