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Finding the Fourth Proportional to 5,367.21, 7,406.05 and 2,977.16

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Solution

The fourth proportional to 5,367.21, 7,406.05 and 2,977.16 is: 4,108.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,367.21 : 7,406.05 = 2,977.16 : x
  2. Step 2: Convert to fraction form
    5,367.21/7,406.05 = 2,977.16/x
  3. Step 3: Cross multiply
    5,367.21x = 7,406.05 × 2,977.16
  4. Step 4: Simplify right side
    5,367.21x = 22,048,943.90
  5. Step 5: Solve for x
    x = 22,048,943.90/5,367.21
  6. Step 6: Final answer
    x = 4,108.08

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Why These Related Problems?

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