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Finding the Fourth Proportional to 14,469.73, 21,689.69 and 6,577.74

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Solution

The fourth proportional to 14,469.73, 21,689.69 and 6,577.74 is: 9,859.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,469.73 : 21,689.69 = 6,577.74 : x
  2. Step 2: Convert to fraction form
    14,469.73/21,689.69 = 6,577.74/x
  3. Step 3: Cross multiply
    14,469.73x = 21,689.69 × 6,577.74
  4. Step 4: Simplify right side
    14,469.73x = 142,669,141.50
  5. Step 5: Solve for x
    x = 142,669,141.50/14,469.73
  6. Step 6: Final answer
    x = 9,859.83

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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.