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Finding the Fourth Proportional to 14,059.23, 21,087.49 and 5,739.99

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Solution

The fourth proportional to 14,059.23, 21,087.49 and 5,739.99 is: 8,609.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,059.23 : 21,087.49 = 5,739.99 : x
  2. Step 2: Convert to fraction form
    14,059.23/21,087.49 = 5,739.99/x
  3. Step 3: Cross multiply
    14,059.23x = 21,087.49 × 5,739.99
  4. Step 4: Simplify right side
    14,059.23x = 121,041,981.73
  5. Step 5: Solve for x
    x = 121,041,981.73/14,059.23
  6. Step 6: Final answer
    x = 8,609.43

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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.