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Finding the Fourth Proportional to 16,802.80, 25,212.30 and 11,861.80

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Solution

The fourth proportional to 16,802.80, 25,212.30 and 11,861.80 is: 17,798.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,802.80 : 25,212.30 = 11,861.80 : x
  2. Step 2: Convert to fraction form
    16,802.80/25,212.30 = 11,861.80/x
  3. Step 3: Cross multiply
    16,802.80x = 25,212.30 × 11,861.80
  4. Step 4: Simplify right side
    16,802.80x = 299,063,260.14
  5. Step 5: Solve for x
    x = 299,063,260.14/16,802.80
  6. Step 6: Final answer
    x = 17,798.42

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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.