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Finding the Fourth Proportional to 7,794.60, 10,745.36 and 4,808.42

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Solution

The fourth proportional to 7,794.60, 10,745.36 and 4,808.42 is: 6,628.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,794.60 : 10,745.36 = 4,808.42 : x
  2. Step 2: Convert to fraction form
    7,794.60/10,745.36 = 4,808.42/x
  3. Step 3: Cross multiply
    7,794.60x = 10,745.36 × 4,808.42
  4. Step 4: Simplify right side
    7,794.60x = 51,668,203.93
  5. Step 5: Solve for x
    x = 51,668,203.93/7,794.60
  6. Step 6: Final answer
    x = 6,628.72

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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.