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Finding the Fourth Proportional to 10,673.80, 16,013.10 and 3,278.60

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Solution

The fourth proportional to 10,673.80, 16,013.10 and 3,278.60 is: 4,918.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,673.80 : 16,013.10 = 3,278.60 : x
  2. Step 2: Convert to fraction form
    10,673.80/16,013.10 = 3,278.60/x
  3. Step 3: Cross multiply
    10,673.80x = 16,013.10 × 3,278.60
  4. Step 4: Simplify right side
    10,673.80x = 52,500,549.66
  5. Step 5: Solve for x
    x = 52,500,549.66/10,673.80
  6. Step 6: Final answer
    x = 4,918.64

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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.