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Finding the Fourth Proportional to 3,867.84, 5,796.72 and 1,556.64

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Solution

The fourth proportional to 3,867.84, 5,796.72 and 1,556.64 is: 2,332.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.84 : 5,796.72 = 1,556.64 : x
  2. Step 2: Convert to fraction form
    3,867.84/5,796.72 = 1,556.64/x
  3. Step 3: Cross multiply
    3,867.84x = 5,796.72 × 1,556.64
  4. Step 4: Simplify right side
    3,867.84x = 9,023,406.22
  5. Step 5: Solve for x
    x = 9,023,406.22/3,867.84
  6. Step 6: Final answer
    x = 2,332.93

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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.