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Finding the Fourth Proportional to 44,693.91, 67,055.45 and 21,317.31

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Solution

The fourth proportional to 44,693.91, 67,055.45 and 21,317.31 is: 31,982.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,693.91 : 67,055.45 = 21,317.31 : x
  2. Step 2: Convert to fraction form
    44,693.91/67,055.45 = 21,317.31/x
  3. Step 3: Cross multiply
    44,693.91x = 67,055.45 × 21,317.31
  4. Step 4: Simplify right side
    44,693.91x = 1,429,441,708.25
  5. Step 5: Solve for x
    x = 1,429,441,708.25/44,693.91
  6. Step 6: Final answer
    x = 31,982.92

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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.