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Finding the Fourth Proportional to 45,355.54, 68,039.46 and 15,769.54

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Solution

The fourth proportional to 45,355.54, 68,039.46 and 15,769.54 is: 23,656.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,355.54 : 68,039.46 = 15,769.54 : x
  2. Step 2: Convert to fraction form
    45,355.54/68,039.46 = 15,769.54/x
  3. Step 3: Cross multiply
    45,355.54x = 68,039.46 × 15,769.54
  4. Step 4: Simplify right side
    45,355.54x = 1,072,950,986.05
  5. Step 5: Solve for x
    x = 1,072,950,986.05/45,355.54
  6. Step 6: Final answer
    x = 23,656.45

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1.5x scale

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.