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Finding the Fourth Proportional to 18,693.65, 28,040.41 and 7,597.73

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Solution

The fourth proportional to 18,693.65, 28,040.41 and 7,597.73 is: 11,396.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,693.65 : 28,040.41 = 7,597.73 : x
  2. Step 2: Convert to fraction form
    18,693.65/28,040.41 = 7,597.73/x
  3. Step 3: Cross multiply
    18,693.65x = 28,040.41 × 7,597.73
  4. Step 4: Simplify right side
    18,693.65x = 213,043,543.87
  5. Step 5: Solve for x
    x = 213,043,543.87/18,693.65
  6. Step 6: Final answer
    x = 11,396.57

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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.