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Finding the Fourth Proportional to 44,643.78, 66,965.60 and 18,329.98

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Solution

The fourth proportional to 44,643.78, 66,965.60 and 18,329.98 is: 27,494.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,643.78 : 66,965.60 = 18,329.98 : x
  2. Step 2: Convert to fraction form
    44,643.78/66,965.60 = 18,329.98/x
  3. Step 3: Cross multiply
    44,643.78x = 66,965.60 × 18,329.98
  4. Step 4: Simplify right side
    44,643.78x = 1,227,478,108.69
  5. Step 5: Solve for x
    x = 1,227,478,108.69/44,643.78
  6. Step 6: Final answer
    x = 27,494.94

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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.