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Finding the Fourth Proportional to 36,418.27, 54,582.03 and 13,018.99

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Solution

The fourth proportional to 36,418.27, 54,582.03 and 13,018.99 is: 19,512.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,418.27 : 54,582.03 = 13,018.99 : x
  2. Step 2: Convert to fraction form
    36,418.27/54,582.03 = 13,018.99/x
  3. Step 3: Cross multiply
    36,418.27x = 54,582.03 × 13,018.99
  4. Step 4: Simplify right side
    36,418.27x = 710,602,902.75
  5. Step 5: Solve for x
    x = 710,602,902.75/36,418.27
  6. Step 6: Final answer
    x = 19,512.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.