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Finding the Fourth Proportional to 14,659.98, 21,989.79 and 3,566.67

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Solution

The fourth proportional to 14,659.98, 21,989.79 and 3,566.67 is: 5,349.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,659.98 : 21,989.79 = 3,566.67 : x
  2. Step 2: Convert to fraction form
    14,659.98/21,989.79 = 3,566.67/x
  3. Step 3: Cross multiply
    14,659.98x = 21,989.79 × 3,566.67
  4. Step 4: Simplify right side
    14,659.98x = 78,430,324.30
  5. Step 5: Solve for x
    x = 78,430,324.30/14,659.98
  6. Step 6: Final answer
    x = 5,349.96

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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.