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Finding the Fourth Proportional to 13,958.64, 20,938.02 and 6,069.09

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Solution

The fourth proportional to 13,958.64, 20,938.02 and 6,069.09 is: 9,103.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,958.64 : 20,938.02 = 6,069.09 : x
  2. Step 2: Convert to fraction form
    13,958.64/20,938.02 = 6,069.09/x
  3. Step 3: Cross multiply
    13,958.64x = 20,938.02 × 6,069.09
  4. Step 4: Simplify right side
    13,958.64x = 127,074,727.80
  5. Step 5: Solve for x
    x = 127,074,727.80/13,958.64
  6. Step 6: Final answer
    x = 9,103.66

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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.