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Finding the Fourth Proportional to 14,568.88, 20,104.99 and 8,281.25

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Solution

The fourth proportional to 14,568.88, 20,104.99 and 8,281.25 is: 11,428.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,568.88 : 20,104.99 = 8,281.25 : x
  2. Step 2: Convert to fraction form
    14,568.88/20,104.99 = 8,281.25/x
  3. Step 3: Cross multiply
    14,568.88x = 20,104.99 × 8,281.25
  4. Step 4: Simplify right side
    14,568.88x = 166,494,448.44
  5. Step 5: Solve for x
    x = 166,494,448.44/14,568.88
  6. Step 6: Final answer
    x = 11,428.09

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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.