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Finding the Fourth Proportional to 5,094.60, 7,641.90 and 1,806.60

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Solution

The fourth proportional to 5,094.60, 7,641.90 and 1,806.60 is: 2,709.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,094.60 : 7,641.90 = 1,806.60 : x
  2. Step 2: Convert to fraction form
    5,094.60/7,641.90 = 1,806.60/x
  3. Step 3: Cross multiply
    5,094.60x = 7,641.90 × 1,806.60
  4. Step 4: Simplify right side
    5,094.60x = 13,805,856.54
  5. Step 5: Solve for x
    x = 13,805,856.54/5,094.60
  6. Step 6: Final answer
    x = 2,709.90

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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.