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Finding the Fourth Proportional to 25,958.58, 35,825.64 and 15,893.79

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Solution

The fourth proportional to 25,958.58, 35,825.64 and 15,893.79 is: 21,935.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,958.58 : 35,825.64 = 15,893.79 : x
  2. Step 2: Convert to fraction form
    25,958.58/35,825.64 = 15,893.79/x
  3. Step 3: Cross multiply
    25,958.58x = 35,825.64 × 15,893.79
  4. Step 4: Simplify right side
    25,958.58x = 569,405,198.78
  5. Step 5: Solve for x
    x = 569,405,198.78/25,958.58
  6. Step 6: Final answer
    x = 21,935.14

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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.