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Finding the Fourth Proportional to 4,404.32, 6,078 and 2,635.64

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Solution

The fourth proportional to 4,404.32, 6,078 and 2,635.64 is: 3,637.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,404.32 : 6,078 = 2,635.64 : x
  2. Step 2: Convert to fraction form
    4,404.32/6,078 = 2,635.64/x
  3. Step 3: Cross multiply
    4,404.32x = 6,078 × 2,635.64
  4. Step 4: Simplify right side
    4,404.32x = 16,019,419.92
  5. Step 5: Solve for x
    x = 16,019,419.92/4,404.32
  6. Step 6: Final answer
    x = 3,637.21

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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.