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Finding the Fourth Proportional to 29,766.36, 44,657.10 and 21,018.36

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Solution

The fourth proportional to 29,766.36, 44,657.10 and 21,018.36 is: 31,532.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,766.36 : 44,657.10 = 21,018.36 : x
  2. Step 2: Convert to fraction form
    29,766.36/44,657.10 = 21,018.36/x
  3. Step 3: Cross multiply
    29,766.36x = 44,657.10 × 21,018.36
  4. Step 4: Simplify right side
    29,766.36x = 938,619,004.36
  5. Step 5: Solve for x
    x = 938,619,004.36/29,766.36
  6. Step 6: Final answer
    x = 31,532.88

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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.