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Finding the Fourth Proportional to 19,197.95, 28,795.04 and 6,715.67

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Solution

The fourth proportional to 19,197.95, 28,795.04 and 6,715.67 is: 10,072.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,197.95 : 28,795.04 = 6,715.67 : x
  2. Step 2: Convert to fraction form
    19,197.95/28,795.04 = 6,715.67/x
  3. Step 3: Cross multiply
    19,197.95x = 28,795.04 × 6,715.67
  4. Step 4: Simplify right side
    19,197.95x = 193,377,952.70
  5. Step 5: Solve for x
    x = 193,377,952.70/19,197.95
  6. Step 6: Final answer
    x = 10,072.84

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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.