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Finding the Fourth Proportional to 14,019.46, 20,986.25 and 9,079.27

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Solution

The fourth proportional to 14,019.46, 20,986.25 and 9,079.27 is: 13,591.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,019.46 : 20,986.25 = 9,079.27 : x
  2. Step 2: Convert to fraction form
    14,019.46/20,986.25 = 9,079.27/x
  3. Step 3: Cross multiply
    14,019.46x = 20,986.25 × 9,079.27
  4. Step 4: Simplify right side
    14,019.46x = 190,539,679.71
  5. Step 5: Solve for x
    x = 190,539,679.71/14,019.46
  6. Step 6: Final answer
    x = 13,591.09

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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.