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Finding the Fourth Proportional to 12,824.80, 19,245.80 and 4,504.80

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Solution

The fourth proportional to 12,824.80, 19,245.80 and 4,504.80 is: 6,760.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,824.80 : 19,245.80 = 4,504.80 : x
  2. Step 2: Convert to fraction form
    12,824.80/19,245.80 = 4,504.80/x
  3. Step 3: Cross multiply
    12,824.80x = 19,245.80 × 4,504.80
  4. Step 4: Simplify right side
    12,824.80x = 86,698,479.84
  5. Step 5: Solve for x
    x = 86,698,479.84/12,824.80
  6. Step 6: Final answer
    x = 6,760.22

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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.