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Finding the Fourth Proportional to 25,806.80, 35,614.08 and 15,194.48

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Solution

The fourth proportional to 25,806.80, 35,614.08 and 15,194.48 is: 20,968.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,806.80 : 35,614.08 = 15,194.48 : x
  2. Step 2: Convert to fraction form
    25,806.80/35,614.08 = 15,194.48/x
  3. Step 3: Cross multiply
    25,806.80x = 35,614.08 × 15,194.48
  4. Step 4: Simplify right side
    25,806.80x = 541,137,426.28
  5. Step 5: Solve for x
    x = 541,137,426.28/25,806.80
  6. Step 6: Final answer
    x = 20,968.79

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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.