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Finding the Fourth Proportional to 5,092.64, 7,636.80 and 1,806.56

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Solution

The fourth proportional to 5,092.64, 7,636.80 and 1,806.56 is: 2,709.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,092.64 : 7,636.80 = 1,806.56 : x
  2. Step 2: Convert to fraction form
    5,092.64/7,636.80 = 1,806.56/x
  3. Step 3: Cross multiply
    5,092.64x = 7,636.80 × 1,806.56
  4. Step 4: Simplify right side
    5,092.64x = 13,796,337.41
  5. Step 5: Solve for x
    x = 13,796,337.41/5,092.64
  6. Step 6: Final answer
    x = 2,709.07

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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.