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Finding the Fourth Proportional to 5,596.60, 8,386.14 and 2,991.64

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Solution

The fourth proportional to 5,596.60, 8,386.14 and 2,991.64 is: 4,482.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,596.60 : 8,386.14 = 2,991.64 : x
  2. Step 2: Convert to fraction form
    5,596.60/8,386.14 = 2,991.64/x
  3. Step 3: Cross multiply
    5,596.60x = 8,386.14 × 2,991.64
  4. Step 4: Simplify right side
    5,596.60x = 25,088,311.87
  5. Step 5: Solve for x
    x = 25,088,311.87/5,596.60
  6. Step 6: Final answer
    x = 4,482.78

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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.