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Finding the Fourth Proportional to 16,683.50, 23,023.96 and 9,231.50

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Solution

The fourth proportional to 16,683.50, 23,023.96 and 9,231.50 is: 12,739.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,683.50 : 23,023.96 = 9,231.50 : x
  2. Step 2: Convert to fraction form
    16,683.50/23,023.96 = 9,231.50/x
  3. Step 3: Cross multiply
    16,683.50x = 23,023.96 × 9,231.50
  4. Step 4: Simplify right side
    16,683.50x = 212,545,686.74
  5. Step 5: Solve for x
    x = 212,545,686.74/16,683.50
  6. Step 6: Final answer
    x = 12,739.87

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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.