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Finding the Fourth Proportional to 5,806.56, 8,699.76 and 3,616.86

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Solution

The fourth proportional to 5,806.56, 8,699.76 and 3,616.86 is: 5,419.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,806.56 : 8,699.76 = 3,616.86 : x
  2. Step 2: Convert to fraction form
    5,806.56/8,699.76 = 3,616.86/x
  3. Step 3: Cross multiply
    5,806.56x = 8,699.76 × 3,616.86
  4. Step 4: Simplify right side
    5,806.56x = 31,465,813.95
  5. Step 5: Solve for x
    x = 31,465,813.95/5,806.56
  6. Step 6: Final answer
    x = 5,419.01

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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.