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Finding the Fourth Proportional to 55,969.69, 83,954.44 and 38,386.21

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Solution

The fourth proportional to 55,969.69, 83,954.44 and 38,386.21 is: 57,579.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,969.69 : 83,954.44 = 38,386.21 : x
  2. Step 2: Convert to fraction form
    55,969.69/83,954.44 = 38,386.21/x
  3. Step 3: Cross multiply
    55,969.69x = 83,954.44 × 38,386.21
  4. Step 4: Simplify right side
    55,969.69x = 3,222,692,764.27
  5. Step 5: Solve for x
    x = 3,222,692,764.27/55,969.69
  6. Step 6: Final answer
    x = 57,579.25

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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.