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Finding the Fourth Proportional to 50,998.65, 70,366.64 and 30,855.03

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Solution

The fourth proportional to 50,998.65, 70,366.64 and 30,855.03 is: 42,572.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,998.65 : 70,366.64 = 30,855.03 : x
  2. Step 2: Convert to fraction form
    50,998.65/70,366.64 = 30,855.03/x
  3. Step 3: Cross multiply
    50,998.65x = 70,366.64 × 30,855.03
  4. Step 4: Simplify right side
    50,998.65x = 2,171,164,633.92
  5. Step 5: Solve for x
    x = 2,171,164,633.92/50,998.65
  6. Step 6: Final answer
    x = 42,572.98

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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.