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Finding the Fourth Proportional to 44,494.99, 66,705.90 and 20,790.81

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Solution

The fourth proportional to 44,494.99, 66,705.90 and 20,790.81 is: 31,169.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,494.99 : 66,705.90 = 20,790.81 : x
  2. Step 2: Convert to fraction form
    44,494.99/66,705.90 = 20,790.81/x
  3. Step 3: Cross multiply
    44,494.99x = 66,705.90 × 20,790.81
  4. Step 4: Simplify right side
    44,494.99x = 1,386,869,614.81
  5. Step 5: Solve for x
    x = 1,386,869,614.81/44,494.99
  6. Step 6: Final answer
    x = 31,169.12

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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.