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Finding the Fourth Proportional to 53,272.40, 79,879.80 and 22,110.80

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Solution

The fourth proportional to 53,272.40, 79,879.80 and 22,110.80 is: 33,154.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,272.40 : 79,879.80 = 22,110.80 : x
  2. Step 2: Convert to fraction form
    53,272.40/79,879.80 = 22,110.80/x
  3. Step 3: Cross multiply
    53,272.40x = 79,879.80 × 22,110.80
  4. Step 4: Simplify right side
    53,272.40x = 1,766,206,281.84
  5. Step 5: Solve for x
    x = 1,766,206,281.84/53,272.40
  6. Step 6: Final answer
    x = 33,154.25

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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.