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Finding the Fourth Proportional to 57,514.80, 86,320.80 and 22,479.60

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Solution

The fourth proportional to 57,514.80, 86,320.80 and 22,479.60 is: 33,738.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,514.80 : 86,320.80 = 22,479.60 : x
  2. Step 2: Convert to fraction form
    57,514.80/86,320.80 = 22,479.60/x
  3. Step 3: Cross multiply
    57,514.80x = 86,320.80 × 22,479.60
  4. Step 4: Simplify right side
    57,514.80x = 1,940,457,055.68
  5. Step 5: Solve for x
    x = 1,940,457,055.68/57,514.80
  6. Step 6: Final answer
    x = 33,738.40

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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.