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Finding the Fourth Proportional to 55,969.81, 83,954.62 and 38,386.33

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Solution

The fourth proportional to 55,969.81, 83,954.62 and 38,386.33 is: 57,579.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,969.81 : 83,954.62 = 38,386.33 : x
  2. Step 2: Convert to fraction form
    55,969.81/83,954.62 = 38,386.33/x
  3. Step 3: Cross multiply
    55,969.81x = 83,954.62 × 38,386.33
  4. Step 4: Simplify right side
    55,969.81x = 3,222,709,748.34
  5. Step 5: Solve for x
    x = 3,222,709,748.34/55,969.81
  6. Step 6: Final answer
    x = 57,579.43

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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.