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Finding the Fourth Proportional to 7,942.40, 10,955.04 and 4,794.56

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Solution

The fourth proportional to 7,942.40, 10,955.04 and 4,794.56 is: 6,613.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,942.40 : 10,955.04 = 4,794.56 : x
  2. Step 2: Convert to fraction form
    7,942.40/10,955.04 = 4,794.56/x
  3. Step 3: Cross multiply
    7,942.40x = 10,955.04 × 4,794.56
  4. Step 4: Simplify right side
    7,942.40x = 52,524,596.58
  5. Step 5: Solve for x
    x = 52,524,596.58/7,942.40
  6. Step 6: Final answer
    x = 6,613.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.