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Finding the Fourth Proportional to 3,651.67, 5,476.90 and 1,054

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Solution

The fourth proportional to 3,651.67, 5,476.90 and 1,054 is: 1,580.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,651.67 : 5,476.90 = 1,054 : x
  2. Step 2: Convert to fraction form
    3,651.67/5,476.90 = 1,054/x
  3. Step 3: Cross multiply
    3,651.67x = 5,476.90 × 1,054
  4. Step 4: Simplify right side
    3,651.67x = 5,772,652.60
  5. Step 5: Solve for x
    x = 5,772,652.60/3,651.67
  6. Step 6: Final answer
    x = 1,580.83

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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.