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Finding the Fourth Proportional to 16,815.92, 25,239.44 and 8,501.80

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Solution

The fourth proportional to 16,815.92, 25,239.44 and 8,501.80 is: 12,760.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,815.92 : 25,239.44 = 8,501.80 : x
  2. Step 2: Convert to fraction form
    16,815.92/25,239.44 = 8,501.80/x
  3. Step 3: Cross multiply
    16,815.92x = 25,239.44 × 8,501.80
  4. Step 4: Simplify right side
    16,815.92x = 214,580,670.99
  5. Step 5: Solve for x
    x = 214,580,670.99/16,815.92
  6. Step 6: Final answer
    x = 12,760.57

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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.