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Finding the Fourth Proportional to 73,021.47, 100,678.32 and 60,939.33

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Solution

The fourth proportional to 73,021.47, 100,678.32 and 60,939.33 is: 84,020.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,021.47 : 100,678.32 = 60,939.33 : x
  2. Step 2: Convert to fraction form
    73,021.47/100,678.32 = 60,939.33/x
  3. Step 3: Cross multiply
    73,021.47x = 100,678.32 × 60,939.33
  4. Step 4: Simplify right side
    73,021.47x = 6,135,269,366.33
  5. Step 5: Solve for x
    x = 6,135,269,366.33/73,021.47
  6. Step 6: Final answer
    x = 84,020.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.