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Finding the Fourth Proportional to 69,322.76, 103,991.43 and 22,579.28

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Solution

The fourth proportional to 69,322.76, 103,991.43 and 22,579.28 is: 33,871.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,322.76 : 103,991.43 = 22,579.28 : x
  2. Step 2: Convert to fraction form
    69,322.76/103,991.43 = 22,579.28/x
  3. Step 3: Cross multiply
    69,322.76x = 103,991.43 × 22,579.28
  4. Step 4: Simplify right side
    69,322.76x = 2,348,051,615.57
  5. Step 5: Solve for x
    x = 2,348,051,615.57/69,322.76
  6. Step 6: Final answer
    x = 33,871.29

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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.