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Finding the Fourth Proportional to 14,980.44, 20,672.64 and 8,266.02

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Solution

The fourth proportional to 14,980.44, 20,672.64 and 8,266.02 is: 11,406.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,980.44 : 20,672.64 = 8,266.02 : x
  2. Step 2: Convert to fraction form
    14,980.44/20,672.64 = 8,266.02/x
  3. Step 3: Cross multiply
    14,980.44x = 20,672.64 × 8,266.02
  4. Step 4: Simplify right side
    14,980.44x = 170,880,455.69
  5. Step 5: Solve for x
    x = 170,880,455.69/14,980.44
  6. Step 6: Final answer
    x = 11,406.90

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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.