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Finding the Fourth Proportional to 26,668.50, 40,009.23 and 8,200.50

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Solution

The fourth proportional to 26,668.50, 40,009.23 and 8,200.50 is: 12,302.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,668.50 : 40,009.23 = 8,200.50 : x
  2. Step 2: Convert to fraction form
    26,668.50/40,009.23 = 8,200.50/x
  3. Step 3: Cross multiply
    26,668.50x = 40,009.23 × 8,200.50
  4. Step 4: Simplify right side
    26,668.50x = 328,095,690.62
  5. Step 5: Solve for x
    x = 328,095,690.62/26,668.50
  6. Step 6: Final answer
    x = 12,302.74

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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.