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Finding the Fourth Proportional to 44,388, 66,614.81 and 21,014.44

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Solution

The fourth proportional to 44,388, 66,614.81 and 21,014.44 is: 31,537.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,388 : 66,614.81 = 21,014.44 : x
  2. Step 2: Convert to fraction form
    44,388/66,614.81 = 21,014.44/x
  3. Step 3: Cross multiply
    44,388x = 66,614.81 × 21,014.44
  4. Step 4: Simplify right side
    44,388x = 1,399,872,656.25
  5. Step 5: Solve for x
    x = 1,399,872,656.25/44,388
  6. Step 6: Final answer
    x = 31,537.19

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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.