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Finding the Fourth Proportional to 8,369.67, 12,556.79 and 4,674.56

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Solution

The fourth proportional to 8,369.67, 12,556.79 and 4,674.56 is: 7,013.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,369.67 : 12,556.79 = 4,674.56 : x
  2. Step 2: Convert to fraction form
    8,369.67/12,556.79 = 4,674.56/x
  3. Step 3: Cross multiply
    8,369.67x = 12,556.79 × 4,674.56
  4. Step 4: Simplify right side
    8,369.67x = 58,697,382.11
  5. Step 5: Solve for x
    x = 58,697,382.11/8,369.67
  6. Step 6: Final answer
    x = 7,013.11

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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.