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Finding the Fourth Proportional to 8,674.66, 13,013.64 and 3,480.94

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Solution

The fourth proportional to 8,674.66, 13,013.64 and 3,480.94 is: 5,222.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,674.66 : 13,013.64 = 3,480.94 : x
  2. Step 2: Convert to fraction form
    8,674.66/13,013.64 = 3,480.94/x
  3. Step 3: Cross multiply
    8,674.66x = 13,013.64 × 3,480.94
  4. Step 4: Simplify right side
    8,674.66x = 45,299,700.02
  5. Step 5: Solve for x
    x = 45,299,700.02/8,674.66
  6. Step 6: Final answer
    x = 5,222.07

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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.