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Finding the Fourth Proportional to 40,530.36, 55,957.56 and 27,804.84

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Solution

The fourth proportional to 40,530.36, 55,957.56 and 27,804.84 is: 38,388.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,530.36 : 55,957.56 = 27,804.84 : x
  2. Step 2: Convert to fraction form
    40,530.36/55,957.56 = 27,804.84/x
  3. Step 3: Cross multiply
    40,530.36x = 55,957.56 × 27,804.84
  4. Step 4: Simplify right side
    40,530.36x = 1,555,891,002.59
  5. Step 5: Solve for x
    x = 1,555,891,002.59/40,530.36
  6. Step 6: Final answer
    x = 38,388.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.