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Finding the Fourth Proportional to 25,287.94, 37,955.22 and 12,816.82

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Solution

The fourth proportional to 25,287.94, 37,955.22 and 12,816.82 is: 19,237.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,287.94 : 37,955.22 = 12,816.82 : x
  2. Step 2: Convert to fraction form
    25,287.94/37,955.22 = 12,816.82/x
  3. Step 3: Cross multiply
    25,287.94x = 37,955.22 × 12,816.82
  4. Step 4: Simplify right side
    25,287.94x = 486,464,968.94
  5. Step 5: Solve for x
    x = 486,464,968.94/25,287.94
  6. Step 6: Final answer
    x = 19,237.03

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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.