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Finding the Fourth Proportional to 45,992.76, 68,926.74 and 21,001.82

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Solution

The fourth proportional to 45,992.76, 68,926.74 and 21,001.82 is: 31,474.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,992.76 : 68,926.74 = 21,001.82 : x
  2. Step 2: Convert to fraction form
    45,992.76/68,926.74 = 21,001.82/x
  3. Step 3: Cross multiply
    45,992.76x = 68,926.74 × 21,001.82
  4. Step 4: Simplify right side
    45,992.76x = 1,447,586,986.67
  5. Step 5: Solve for x
    x = 1,447,586,986.67/45,992.76
  6. Step 6: Final answer
    x = 31,474.24

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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.