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Finding the Fourth Proportional to 12,444.31, 18,664.44 and 5,048.47

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Solution

The fourth proportional to 12,444.31, 18,664.44 and 5,048.47 is: 7,571.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,444.31 : 18,664.44 = 5,048.47 : x
  2. Step 2: Convert to fraction form
    12,444.31/18,664.44 = 5,048.47/x
  3. Step 3: Cross multiply
    12,444.31x = 18,664.44 × 5,048.47
  4. Step 4: Simplify right side
    12,444.31x = 94,226,865.41
  5. Step 5: Solve for x
    x = 94,226,865.41/12,444.31
  6. Step 6: Final answer
    x = 7,571.88

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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.