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Finding the Fourth Proportional to 67,009.92, 100,514.94 and 20,262.84

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Solution

The fourth proportional to 67,009.92, 100,514.94 and 20,262.84 is: 30,394.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,009.92 : 100,514.94 = 20,262.84 : x
  2. Step 2: Convert to fraction form
    67,009.92/100,514.94 = 20,262.84/x
  3. Step 3: Cross multiply
    67,009.92x = 100,514.94 × 20,262.84
  4. Step 4: Simplify right side
    67,009.92x = 2,036,718,146.83
  5. Step 5: Solve for x
    x = 2,036,718,146.83/67,009.92
  6. Step 6: Final answer
    x = 30,394.28

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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.