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Finding the Fourth Proportional to 48,075, 66,300.41 and 40,035.28

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Solution

The fourth proportional to 48,075, 66,300.41 and 40,035.28 is: 55,212.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,075 : 66,300.41 = 40,035.28 : x
  2. Step 2: Convert to fraction form
    48,075/66,300.41 = 40,035.28/x
  3. Step 3: Cross multiply
    48,075x = 66,300.41 × 40,035.28
  4. Step 4: Simplify right side
    48,075x = 2,654,355,112.54
  5. Step 5: Solve for x
    x = 2,654,355,112.54/48,075
  6. Step 6: Final answer
    x = 55,212.79

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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.