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Finding the Fourth Proportional to 51,998.68, 78,004.50 and 16,928.92

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Solution

The fourth proportional to 51,998.68, 78,004.50 and 16,928.92 is: 25,395.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,998.68 : 78,004.50 = 16,928.92 : x
  2. Step 2: Convert to fraction form
    51,998.68/78,004.50 = 16,928.92/x
  3. Step 3: Cross multiply
    51,998.68x = 78,004.50 × 16,928.92
  4. Step 4: Simplify right side
    51,998.68x = 1,320,531,940.14
  5. Step 5: Solve for x
    x = 1,320,531,940.14/51,998.68
  6. Step 6: Final answer
    x = 25,395.49

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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.