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Finding the Fourth Proportional to 54,329.60, 81,429.60 and 22,739.60

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Solution

The fourth proportional to 54,329.60, 81,429.60 and 22,739.60 is: 34,082.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,329.60 : 81,429.60 = 22,739.60 : x
  2. Step 2: Convert to fraction form
    54,329.60/81,429.60 = 22,739.60/x
  3. Step 3: Cross multiply
    54,329.60x = 81,429.60 × 22,739.60
  4. Step 4: Simplify right side
    54,329.60x = 1,851,676,532.16
  5. Step 5: Solve for x
    x = 1,851,676,532.16/54,329.60
  6. Step 6: Final answer
    x = 34,082.28

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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.