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Finding the Fourth Proportional to 7,651.98, 11,477.97 and 3,952.31

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Solution

The fourth proportional to 7,651.98, 11,477.97 and 3,952.31 is: 5,928.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,651.98 : 11,477.97 = 3,952.31 : x
  2. Step 2: Convert to fraction form
    7,651.98/11,477.97 = 3,952.31/x
  3. Step 3: Cross multiply
    7,651.98x = 11,477.97 × 3,952.31
  4. Step 4: Simplify right side
    7,651.98x = 45,364,438.22
  5. Step 5: Solve for x
    x = 45,364,438.22/7,651.98
  6. Step 6: Final answer
    x = 5,928.46

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Double scale
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Similar ratio
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1.5x scale

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.