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Finding the Fourth Proportional to 14,122.57, 19,481.05 and 8,808.16

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Solution

The fourth proportional to 14,122.57, 19,481.05 and 8,808.16 is: 12,150.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.57 : 19,481.05 = 8,808.16 : x
  2. Step 2: Convert to fraction form
    14,122.57/19,481.05 = 8,808.16/x
  3. Step 3: Cross multiply
    14,122.57x = 19,481.05 × 8,808.16
  4. Step 4: Simplify right side
    14,122.57x = 171,592,063.92
  5. Step 5: Solve for x
    x = 171,592,063.92/14,122.57
  6. Step 6: Final answer
    x = 12,150.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.