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Finding the Fourth Proportional to 5,589.64, 8,365.02 and 4,721.32

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Solution

The fourth proportional to 5,589.64, 8,365.02 and 4,721.32 is: 7,065.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,589.64 : 8,365.02 = 4,721.32 : x
  2. Step 2: Convert to fraction form
    5,589.64/8,365.02 = 4,721.32/x
  3. Step 3: Cross multiply
    5,589.64x = 8,365.02 × 4,721.32
  4. Step 4: Simplify right side
    5,589.64x = 39,493,936.23
  5. Step 5: Solve for x
    x = 39,493,936.23/5,589.64
  6. Step 6: Final answer
    x = 7,065.56

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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.