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Finding the Fourth Proportional to 72,817.77, 100,519.49 and 48,958.28

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Solution

The fourth proportional to 72,817.77, 100,519.49 and 48,958.28 is: 67,583.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,817.77 : 100,519.49 = 48,958.28 : x
  2. Step 2: Convert to fraction form
    72,817.77/100,519.49 = 48,958.28/x
  3. Step 3: Cross multiply
    72,817.77x = 100,519.49 × 48,958.28
  4. Step 4: Simplify right side
    72,817.77x = 4,921,260,956.68
  5. Step 5: Solve for x
    x = 4,921,260,956.68/72,817.77
  6. Step 6: Final answer
    x = 67,583.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.