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Finding the Fourth Proportional to 12,493.92, 18,735.84 and 5,563.68

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Solution

The fourth proportional to 12,493.92, 18,735.84 and 5,563.68 is: 8,343.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,493.92 : 18,735.84 = 5,563.68 : x
  2. Step 2: Convert to fraction form
    12,493.92/18,735.84 = 5,563.68/x
  3. Step 3: Cross multiply
    12,493.92x = 18,735.84 × 5,563.68
  4. Step 4: Simplify right side
    12,493.92x = 104,240,218.29
  5. Step 5: Solve for x
    x = 104,240,218.29/12,493.92
  6. Step 6: Final answer
    x = 8,343.28

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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.