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Finding the Fourth Proportional to 14,441.88, 21,662.81 and 5,207.88

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Solution

The fourth proportional to 14,441.88, 21,662.81 and 5,207.88 is: 7,811.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,441.88 : 21,662.81 = 5,207.88 : x
  2. Step 2: Convert to fraction form
    14,441.88/21,662.81 = 5,207.88/x
  3. Step 3: Cross multiply
    14,441.88x = 21,662.81 × 5,207.88
  4. Step 4: Simplify right side
    14,441.88x = 112,817,219.65
  5. Step 5: Solve for x
    x = 112,817,219.65/14,441.88
  6. Step 6: Final answer
    x = 7,811.81

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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.