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Finding the Fourth Proportional to 14,850.81, 20,494.39 and 8,136.00

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Solution

The fourth proportional to 14,850.81, 20,494.39 and 8,136.00 is: 11,227.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,850.81 : 20,494.39 = 8,136.00 : x
  2. Step 2: Convert to fraction form
    14,850.81/20,494.39 = 8,136.00/x
  3. Step 3: Cross multiply
    14,850.81x = 20,494.39 × 8,136.00
  4. Step 4: Simplify right side
    14,850.81x = 166,742,337.76
  5. Step 5: Solve for x
    x = 166,742,337.76/14,850.81
  6. Step 6: Final answer
    x = 11,227.83

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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.