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Finding the Fourth Proportional to 19,185.34, 28,781.93 and 8,092.01

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Solution

The fourth proportional to 19,185.34, 28,781.93 and 8,092.01 is: 12,139.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,185.34 : 28,781.93 = 8,092.01 : x
  2. Step 2: Convert to fraction form
    19,185.34/28,781.93 = 8,092.01/x
  3. Step 3: Cross multiply
    19,185.34x = 28,781.93 × 8,092.01
  4. Step 4: Simplify right side
    19,185.34x = 232,903,624.92
  5. Step 5: Solve for x
    x = 232,903,624.92/19,185.34
  6. Step 6: Final answer
    x = 12,139.67

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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.