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Finding the Fourth Proportional to 18,736.70, 25,887.03 and 18,552.38

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Solution

The fourth proportional to 18,736.70, 25,887.03 and 18,552.38 is: 25,632.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,736.70 : 25,887.03 = 18,552.38 : x
  2. Step 2: Convert to fraction form
    18,736.70/25,887.03 = 18,552.38/x
  3. Step 3: Cross multiply
    18,736.70x = 25,887.03 × 18,552.38
  4. Step 4: Simplify right side
    18,736.70x = 480,266,017.63
  5. Step 5: Solve for x
    x = 480,266,017.63/18,736.70
  6. Step 6: Final answer
    x = 25,632.37

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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.