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Finding the Fourth Proportional to 18,852.92, 28,270.50 and 6,998.48

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Solution

The fourth proportional to 18,852.92, 28,270.50 and 6,998.48 is: 10,494.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,852.92 : 28,270.50 = 6,998.48 : x
  2. Step 2: Convert to fraction form
    18,852.92/28,270.50 = 6,998.48/x
  3. Step 3: Cross multiply
    18,852.92x = 28,270.50 × 6,998.48
  4. Step 4: Simplify right side
    18,852.92x = 197,850,528.84
  5. Step 5: Solve for x
    x = 197,850,528.84/18,852.92
  6. Step 6: Final answer
    x = 10,494.42

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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.