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Finding the Fourth Proportional to 7,655.58, 11,474.15 and 3,955.82

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Solution

The fourth proportional to 7,655.58, 11,474.15 and 3,955.82 is: 5,928.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,655.58 : 11,474.15 = 3,955.82 : x
  2. Step 2: Convert to fraction form
    7,655.58/11,474.15 = 3,955.82/x
  3. Step 3: Cross multiply
    7,655.58x = 11,474.15 × 3,955.82
  4. Step 4: Simplify right side
    7,655.58x = 45,389,594.90
  5. Step 5: Solve for x
    x = 45,389,594.90/7,655.58
  6. Step 6: Final answer
    x = 5,928.96

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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.