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Finding the Fourth Proportional to 7,952.55, 11,913.19 and 3,999.03

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Solution

The fourth proportional to 7,952.55, 11,913.19 and 3,999.03 is: 5,990.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,952.55 : 11,913.19 = 3,999.03 : x
  2. Step 2: Convert to fraction form
    7,952.55/11,913.19 = 3,999.03/x
  3. Step 3: Cross multiply
    7,952.55x = 11,913.19 × 3,999.03
  4. Step 4: Simplify right side
    7,952.55x = 47,641,184.21
  5. Step 5: Solve for x
    x = 47,641,184.21/7,952.55
  6. Step 6: Final answer
    x = 5,990.68

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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.