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Finding the Fourth Proportional to 4,797.94, 6,621.26 and 2,909.06

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Solution

The fourth proportional to 4,797.94, 6,621.26 and 2,909.06 is: 4,014.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,797.94 : 6,621.26 = 2,909.06 : x
  2. Step 2: Convert to fraction form
    4,797.94/6,621.26 = 2,909.06/x
  3. Step 3: Cross multiply
    4,797.94x = 6,621.26 × 2,909.06
  4. Step 4: Simplify right side
    4,797.94x = 19,261,642.62
  5. Step 5: Solve for x
    x = 19,261,642.62/4,797.94
  6. Step 6: Final answer
    x = 4,014.57

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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.