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Finding the Fourth Proportional to 7,958.61, 11,941.29 and 4,259.88

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Solution

The fourth proportional to 7,958.61, 11,941.29 and 4,259.88 is: 6,391.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,958.61 : 11,941.29 = 4,259.88 : x
  2. Step 2: Convert to fraction form
    7,958.61/11,941.29 = 4,259.88/x
  3. Step 3: Cross multiply
    7,958.61x = 11,941.29 × 4,259.88
  4. Step 4: Simplify right side
    7,958.61x = 50,868,462.45
  5. Step 5: Solve for x
    x = 50,868,462.45/7,958.61
  6. Step 6: Final answer
    x = 6,391.63

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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.