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Finding the Fourth Proportional to 48,731.40, 73,040.40 and 22,438.80

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Solution

The fourth proportional to 48,731.40, 73,040.40 and 22,438.80 is: 33,632.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,731.40 : 73,040.40 = 22,438.80 : x
  2. Step 2: Convert to fraction form
    48,731.40/73,040.40 = 22,438.80/x
  3. Step 3: Cross multiply
    48,731.40x = 73,040.40 × 22,438.80
  4. Step 4: Simplify right side
    48,731.40x = 1,638,938,927.52
  5. Step 5: Solve for x
    x = 1,638,938,927.52/48,731.40
  6. Step 6: Final answer
    x = 33,632.09

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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.