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Finding the Fourth Proportional to 49,770.65, 74,656.89 and 16,490.89

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Solution

The fourth proportional to 49,770.65, 74,656.89 and 16,490.89 is: 24,736.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,770.65 : 74,656.89 = 16,490.89 : x
  2. Step 2: Convert to fraction form
    49,770.65/74,656.89 = 16,490.89/x
  3. Step 3: Cross multiply
    49,770.65x = 74,656.89 × 16,490.89
  4. Step 4: Simplify right side
    49,770.65x = 1,231,158,654.05
  5. Step 5: Solve for x
    x = 1,231,158,654.05/49,770.65
  6. Step 6: Final answer
    x = 24,736.64

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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.