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Finding the Fourth Proportional to 12,193.95, 18,290.93 and 4,794.37

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Solution

The fourth proportional to 12,193.95, 18,290.93 and 4,794.37 is: 7,191.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,193.95 : 18,290.93 = 4,794.37 : x
  2. Step 2: Convert to fraction form
    12,193.95/18,290.93 = 4,794.37/x
  3. Step 3: Cross multiply
    12,193.95x = 18,290.93 × 4,794.37
  4. Step 4: Simplify right side
    12,193.95x = 87,693,416.36
  5. Step 5: Solve for x
    x = 87,693,416.36/12,193.95
  6. Step 6: Final answer
    x = 7,191.55

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Similar ratio
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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.