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Finding the Fourth Proportional to 55,930.96, 83,896.42 and 20,394.96

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Solution

The fourth proportional to 55,930.96, 83,896.42 and 20,394.96 is: 30,592.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,930.96 : 83,896.42 = 20,394.96 : x
  2. Step 2: Convert to fraction form
    55,930.96/83,896.42 = 20,394.96/x
  3. Step 3: Cross multiply
    55,930.96x = 83,896.42 × 20,394.96
  4. Step 4: Simplify right side
    55,930.96x = 1,711,064,130.04
  5. Step 5: Solve for x
    x = 1,711,064,130.04/55,930.96
  6. Step 6: Final answer
    x = 30,592.43

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1.5x scale

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.