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Finding the Fourth Proportional to 18,852.62, 28,235.87 and 8,998.84

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Solution

The fourth proportional to 18,852.62, 28,235.87 and 8,998.84 is: 13,477.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,852.62 : 28,235.87 = 8,998.84 : x
  2. Step 2: Convert to fraction form
    18,852.62/28,235.87 = 8,998.84/x
  3. Step 3: Cross multiply
    18,852.62x = 28,235.87 × 8,998.84
  4. Step 4: Simplify right side
    18,852.62x = 254,089,890.22
  5. Step 5: Solve for x
    x = 254,089,890.22/18,852.62
  6. Step 6: Final answer
    x = 13,477.70

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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.