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Finding the Fourth Proportional to 14,959.32, 20,643.96 and 8,584.21

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Solution

The fourth proportional to 14,959.32, 20,643.96 and 8,584.21 is: 11,846.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,959.32 : 20,643.96 = 8,584.21 : x
  2. Step 2: Convert to fraction form
    14,959.32/20,643.96 = 8,584.21/x
  3. Step 3: Cross multiply
    14,959.32x = 20,643.96 × 8,584.21
  4. Step 4: Simplify right side
    14,959.32x = 177,212,087.87
  5. Step 5: Solve for x
    x = 177,212,087.87/14,959.32
  6. Step 6: Final answer
    x = 11,846.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.