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Finding the Fourth Proportional to 57,513.44, 86,242.79 and 20,068.97

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Solution

The fourth proportional to 57,513.44, 86,242.79 and 20,068.97 is: 30,093.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,513.44 : 86,242.79 = 20,068.97 : x
  2. Step 2: Convert to fraction form
    57,513.44/86,242.79 = 20,068.97/x
  3. Step 3: Cross multiply
    57,513.44x = 86,242.79 × 20,068.97
  4. Step 4: Simplify right side
    57,513.44x = 1,730,803,584.18
  5. Step 5: Solve for x
    x = 1,730,803,584.18/57,513.44
  6. Step 6: Final answer
    x = 30,093.90

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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.