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Finding the Fourth Proportional to 45,770.72, 68,670.84 and 19,497.92

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Solution

The fourth proportional to 45,770.72, 68,670.84 and 19,497.92 is: 29,253.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,770.72 : 68,670.84 = 19,497.92 : x
  2. Step 2: Convert to fraction form
    45,770.72/68,670.84 = 19,497.92/x
  3. Step 3: Cross multiply
    45,770.72x = 68,670.84 × 19,497.92
  4. Step 4: Simplify right side
    45,770.72x = 1,338,938,544.65
  5. Step 5: Solve for x
    x = 1,338,938,544.65/45,770.72
  6. Step 6: Final answer
    x = 29,253.17

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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.