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Finding the Fourth Proportional to 25,993.63, 35,870.61 and 15,383.44

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Solution

The fourth proportional to 25,993.63, 35,870.61 and 15,383.44 is: 21,228.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,993.63 : 35,870.61 = 15,383.44 : x
  2. Step 2: Convert to fraction form
    25,993.63/35,870.61 = 15,383.44/x
  3. Step 3: Cross multiply
    25,993.63x = 35,870.61 × 15,383.44
  4. Step 4: Simplify right side
    25,993.63x = 551,813,376.70
  5. Step 5: Solve for x
    x = 551,813,376.70/25,993.63
  6. Step 6: Final answer
    x = 21,228.79

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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.