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Finding the Fourth Proportional to 50,644.68, 69,909.08 and 45,330

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Solution

The fourth proportional to 50,644.68, 69,909.08 and 45,330 is: 62,572.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,644.68 : 69,909.08 = 45,330 : x
  2. Step 2: Convert to fraction form
    50,644.68/69,909.08 = 45,330/x
  3. Step 3: Cross multiply
    50,644.68x = 69,909.08 × 45,330
  4. Step 4: Simplify right side
    50,644.68x = 3,168,978,596.40
  5. Step 5: Solve for x
    x = 3,168,978,596.40/50,644.68
  6. Step 6: Final answer
    x = 62,572.78

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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.