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Finding the Fourth Proportional to 4,568.72, 6,837.72 and 2,618

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Solution

The fourth proportional to 4,568.72, 6,837.72 and 2,618 is: 3,918.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,568.72 : 6,837.72 = 2,618 : x
  2. Step 2: Convert to fraction form
    4,568.72/6,837.72 = 2,618/x
  3. Step 3: Cross multiply
    4,568.72x = 6,837.72 × 2,618
  4. Step 4: Simplify right side
    4,568.72x = 17,901,150.96
  5. Step 5: Solve for x
    x = 17,901,150.96/4,568.72
  6. Step 6: Final answer
    x = 3,918.20

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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.