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Finding the Fourth Proportional to 73,814.25, 110,721.39 and 18,410.25

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Solution

The fourth proportional to 73,814.25, 110,721.39 and 18,410.25 is: 27,615.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,814.25 : 110,721.39 = 18,410.25 : x
  2. Step 2: Convert to fraction form
    73,814.25/110,721.39 = 18,410.25/x
  3. Step 3: Cross multiply
    73,814.25x = 110,721.39 × 18,410.25
  4. Step 4: Simplify right side
    73,814.25x = 2,038,408,470.25
  5. Step 5: Solve for x
    x = 2,038,408,470.25/73,814.25
  6. Step 6: Final answer
    x = 27,615.38

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1.5x scale

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.