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Finding the Fourth Proportional to 45,355.73, 68,039.75 and 15,769.73

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Solution

The fourth proportional to 45,355.73, 68,039.75 and 15,769.73 is: 23,656.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,355.73 : 68,039.75 = 15,769.73 : x
  2. Step 2: Convert to fraction form
    45,355.73/68,039.75 = 15,769.73/x
  3. Step 3: Cross multiply
    45,355.73x = 68,039.75 × 15,769.73
  4. Step 4: Simplify right side
    45,355.73x = 1,072,968,486.77
  5. Step 5: Solve for x
    x = 1,072,968,486.77/45,355.73
  6. Step 6: Final answer
    x = 23,656.74

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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.