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Finding the Fourth Proportional to 53,619.80, 80,415.30 and 22,448.60

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Solution

The fourth proportional to 53,619.80, 80,415.30 and 22,448.60 is: 33,666.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,619.80 : 80,415.30 = 22,448.60 : x
  2. Step 2: Convert to fraction form
    53,619.80/80,415.30 = 22,448.60/x
  3. Step 3: Cross multiply
    53,619.80x = 80,415.30 × 22,448.60
  4. Step 4: Simplify right side
    53,619.80x = 1,805,210,903.58
  5. Step 5: Solve for x
    x = 1,805,210,903.58/53,619.80
  6. Step 6: Final answer
    x = 33,666.87

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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.