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Finding the Fourth Proportional to 19,596.90, 27,028.90 and 13,625.58

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Solution

The fourth proportional to 19,596.90, 27,028.90 and 13,625.58 is: 18,792.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,596.90 : 27,028.90 = 13,625.58 : x
  2. Step 2: Convert to fraction form
    19,596.90/27,028.90 = 13,625.58/x
  3. Step 3: Cross multiply
    19,596.90x = 27,028.90 × 13,625.58
  4. Step 4: Simplify right side
    19,596.90x = 368,284,439.26
  5. Step 5: Solve for x
    x = 368,284,439.26/19,596.90
  6. Step 6: Final answer
    x = 18,792.99

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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.