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Finding the Fourth Proportional to 8,604.67, 12,907.71 and 3,674.38

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Solution

The fourth proportional to 8,604.67, 12,907.71 and 3,674.38 is: 5,511.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,604.67 : 12,907.71 = 3,674.38 : x
  2. Step 2: Convert to fraction form
    8,604.67/12,907.71 = 3,674.38/x
  3. Step 3: Cross multiply
    8,604.67x = 12,907.71 × 3,674.38
  4. Step 4: Simplify right side
    8,604.67x = 47,427,831.47
  5. Step 5: Solve for x
    x = 47,427,831.47/8,604.67
  6. Step 6: Final answer
    x = 5,511.87

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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.