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Finding the Fourth Proportional to 48,370.98, 72,584.49 and 20,288.53

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Solution

The fourth proportional to 48,370.98, 72,584.49 and 20,288.53 is: 30,444.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,370.98 : 72,584.49 = 20,288.53 : x
  2. Step 2: Convert to fraction form
    48,370.98/72,584.49 = 20,288.53/x
  3. Step 3: Cross multiply
    48,370.98x = 72,584.49 × 20,288.53
  4. Step 4: Simplify right side
    48,370.98x = 1,472,632,602.90
  5. Step 5: Solve for x
    x = 1,472,632,602.90/48,370.98
  6. Step 6: Final answer
    x = 30,444.55

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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.