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Finding the Fourth Proportional to 44,709.38, 67,095.58 and 21,018

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Solution

The fourth proportional to 44,709.38, 67,095.58 and 21,018 is: 31,541.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,709.38 : 67,095.58 = 21,018 : x
  2. Step 2: Convert to fraction form
    44,709.38/67,095.58 = 21,018/x
  3. Step 3: Cross multiply
    44,709.38x = 67,095.58 × 21,018
  4. Step 4: Simplify right side
    44,709.38x = 1,410,214,900.44
  5. Step 5: Solve for x
    x = 1,410,214,900.44/44,709.38
  6. Step 6: Final answer
    x = 31,541.81

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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.