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Finding the Fourth Proportional to 25,882.76, 35,670.84 and 18,796.88

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Solution

The fourth proportional to 25,882.76, 35,670.84 and 18,796.88 is: 25,905.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,882.76 : 35,670.84 = 18,796.88 : x
  2. Step 2: Convert to fraction form
    25,882.76/35,670.84 = 18,796.88/x
  3. Step 3: Cross multiply
    25,882.76x = 35,670.84 × 18,796.88
  4. Step 4: Simplify right side
    25,882.76x = 670,500,498.98
  5. Step 5: Solve for x
    x = 670,500,498.98/25,882.76
  6. Step 6: Final answer
    x = 25,905.29

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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.