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Finding the Fourth Proportional to 12,792.33, 19,191.08 and 5,396.81

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Solution

The fourth proportional to 12,792.33, 19,191.08 and 5,396.81 is: 8,096.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,792.33 : 19,191.08 = 5,396.81 : x
  2. Step 2: Convert to fraction form
    12,792.33/19,191.08 = 5,396.81/x
  3. Step 3: Cross multiply
    12,792.33x = 19,191.08 × 5,396.81
  4. Step 4: Simplify right side
    12,792.33x = 103,570,529.99
  5. Step 5: Solve for x
    x = 103,570,529.99/12,792.33
  6. Step 6: Final answer
    x = 8,096.30

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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.