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Finding the Fourth Proportional to 19,396.54, 26,766.20 and 10,899

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Solution

The fourth proportional to 19,396.54, 26,766.20 and 10,899 is: 15,040.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,396.54 : 26,766.20 = 10,899 : x
  2. Step 2: Convert to fraction form
    19,396.54/26,766.20 = 10,899/x
  3. Step 3: Cross multiply
    19,396.54x = 26,766.20 × 10,899
  4. Step 4: Simplify right side
    19,396.54x = 291,724,813.80
  5. Step 5: Solve for x
    x = 291,724,813.80/19,396.54
  6. Step 6: Final answer
    x = 15,040.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.