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Finding the Fourth Proportional to 40,738.62, 61,130.97 and 22,018.62

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Solution

The fourth proportional to 40,738.62, 61,130.97 and 22,018.62 is: 33,040.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,738.62 : 61,130.97 = 22,018.62 : x
  2. Step 2: Convert to fraction form
    40,738.62/61,130.97 = 22,018.62/x
  3. Step 3: Cross multiply
    40,738.62x = 61,130.97 × 22,018.62
  4. Step 4: Simplify right side
    40,738.62x = 1,346,019,598.66
  5. Step 5: Solve for x
    x = 1,346,019,598.66/40,738.62
  6. Step 6: Final answer
    x = 33,040.38

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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.