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Finding the Fourth Proportional to 14,651.87, 21,978.41 and 4,263.62

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Solution

The fourth proportional to 14,651.87, 21,978.41 and 4,263.62 is: 6,395.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,651.87 : 21,978.41 = 4,263.62 : x
  2. Step 2: Convert to fraction form
    14,651.87/21,978.41 = 4,263.62/x
  3. Step 3: Cross multiply
    14,651.87x = 21,978.41 × 4,263.62
  4. Step 4: Simplify right side
    14,651.87x = 93,707,588.44
  5. Step 5: Solve for x
    x = 93,707,588.44/14,651.87
  6. Step 6: Final answer
    x = 6,395.61

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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.