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Finding the Fourth Proportional to 48,679.80, 73,038.90 and 19,092.60

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Solution

The fourth proportional to 48,679.80, 73,038.90 and 19,092.60 is: 28,646.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,679.80 : 73,038.90 = 19,092.60 : x
  2. Step 2: Convert to fraction form
    48,679.80/73,038.90 = 19,092.60/x
  3. Step 3: Cross multiply
    48,679.80x = 73,038.90 × 19,092.60
  4. Step 4: Simplify right side
    48,679.80x = 1,394,502,502.14
  5. Step 5: Solve for x
    x = 1,394,502,502.14/48,679.80
  6. Step 6: Final answer
    x = 28,646.43

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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.