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Finding the Fourth Proportional to 18,757.67, 25,884.75 and 10,798.21

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Solution

The fourth proportional to 18,757.67, 25,884.75 and 10,798.21 is: 14,901.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,757.67 : 25,884.75 = 10,798.21 : x
  2. Step 2: Convert to fraction form
    18,757.67/25,884.75 = 10,798.21/x
  3. Step 3: Cross multiply
    18,757.67x = 25,884.75 × 10,798.21
  4. Step 4: Simplify right side
    18,757.67x = 279,508,782.88
  5. Step 5: Solve for x
    x = 279,508,782.88/18,757.67
  6. Step 6: Final answer
    x = 14,901.04

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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.