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Finding the Fourth Proportional to 14,694.70, 20,266.20 and 9,913.88

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Solution

The fourth proportional to 14,694.70, 20,266.20 and 9,913.88 is: 13,672.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,694.70 : 20,266.20 = 9,913.88 : x
  2. Step 2: Convert to fraction form
    14,694.70/20,266.20 = 9,913.88/x
  3. Step 3: Cross multiply
    14,694.70x = 20,266.20 × 9,913.88
  4. Step 4: Simplify right side
    14,694.70x = 200,916,697.02
  5. Step 5: Solve for x
    x = 200,916,697.02/14,694.70
  6. Step 6: Final answer
    x = 13,672.73

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1.5x scale

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.