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Finding the Fourth Proportional to 44,079.36, 66,101.85 and 15,990.99

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Solution

The fourth proportional to 44,079.36, 66,101.85 and 15,990.99 is: 23,980.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,079.36 : 66,101.85 = 15,990.99 : x
  2. Step 2: Convert to fraction form
    44,079.36/66,101.85 = 15,990.99/x
  3. Step 3: Cross multiply
    44,079.36x = 66,101.85 × 15,990.99
  4. Step 4: Simplify right side
    44,079.36x = 1,057,034,022.33
  5. Step 5: Solve for x
    x = 1,057,034,022.33/44,079.36
  6. Step 6: Final answer
    x = 23,980.25

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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.