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Finding the Fourth Proportional to 5,475.19, 7,555.77 and 2,991.19

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Solution

The fourth proportional to 5,475.19, 7,555.77 and 2,991.19 is: 4,127.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.19 : 7,555.77 = 2,991.19 : x
  2. Step 2: Convert to fraction form
    5,475.19/7,555.77 = 2,991.19/x
  3. Step 3: Cross multiply
    5,475.19x = 7,555.77 × 2,991.19
  4. Step 4: Simplify right side
    5,475.19x = 22,600,728.71
  5. Step 5: Solve for x
    x = 22,600,728.71/5,475.19
  6. Step 6: Final answer
    x = 4,127.84

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.