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Finding the Fourth Proportional to 48,273.19, 72,409.88 and 20,571.19

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Solution

The fourth proportional to 48,273.19, 72,409.88 and 20,571.19 is: 30,856.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,273.19 : 72,409.88 = 20,571.19 : x
  2. Step 2: Convert to fraction form
    48,273.19/72,409.88 = 20,571.19/x
  3. Step 3: Cross multiply
    48,273.19x = 72,409.88 × 20,571.19
  4. Step 4: Simplify right side
    48,273.19x = 1,489,557,269.76
  5. Step 5: Solve for x
    x = 1,489,557,269.76/48,273.19
  6. Step 6: Final answer
    x = 30,856.82

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1.5x scale

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.