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Finding the Fourth Proportional to 38,007.80, 57,011.70 and 17,271.80

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Solution

The fourth proportional to 38,007.80, 57,011.70 and 17,271.80 is: 25,907.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,007.80 : 57,011.70 = 17,271.80 : x
  2. Step 2: Convert to fraction form
    38,007.80/57,011.70 = 17,271.80/x
  3. Step 3: Cross multiply
    38,007.80x = 57,011.70 × 17,271.80
  4. Step 4: Simplify right side
    38,007.80x = 984,694,680.06
  5. Step 5: Solve for x
    x = 984,694,680.06/38,007.80
  6. Step 6: Final answer
    x = 25,907.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.