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Finding the Fourth Proportional to 3,533.93, 5,290.57 and 2,648.38

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Solution

The fourth proportional to 3,533.93, 5,290.57 and 2,648.38 is: 3,964.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,533.93 : 5,290.57 = 2,648.38 : x
  2. Step 2: Convert to fraction form
    3,533.93/5,290.57 = 2,648.38/x
  3. Step 3: Cross multiply
    3,533.93x = 5,290.57 × 2,648.38
  4. Step 4: Simplify right side
    3,533.93x = 14,011,433.16
  5. Step 5: Solve for x
    x = 14,011,433.16/3,533.93
  6. Step 6: Final answer
    x = 3,964.84

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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.