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Finding the Fourth Proportional to 25,965.52, 35,849.52 and 19,986.64

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Solution

The fourth proportional to 25,965.52, 35,849.52 and 19,986.64 is: 27,594.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,965.52 : 35,849.52 = 19,986.64 : x
  2. Step 2: Convert to fraction form
    25,965.52/35,849.52 = 19,986.64/x
  3. Step 3: Cross multiply
    25,965.52x = 35,849.52 × 19,986.64
  4. Step 4: Simplify right side
    25,965.52x = 716,511,450.41
  5. Step 5: Solve for x
    x = 716,511,450.41/25,965.52
  6. Step 6: Final answer
    x = 27,594.73

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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.