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Finding the Fourth Proportional to 5,328.59, 7,994.63 and 1,631.54

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Solution

The fourth proportional to 5,328.59, 7,994.63 and 1,631.54 is: 2,447.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,328.59 : 7,994.63 = 1,631.54 : x
  2. Step 2: Convert to fraction form
    5,328.59/7,994.63 = 1,631.54/x
  3. Step 3: Cross multiply
    5,328.59x = 7,994.63 × 1,631.54
  4. Step 4: Simplify right side
    5,328.59x = 13,043,582.70
  5. Step 5: Solve for x
    x = 13,043,582.70/5,328.59
  6. Step 6: Final answer
    x = 2,447.85

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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.