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Finding the Fourth Proportional to 11,769.50, 16,243.35 and 6,801.50

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Solution

The fourth proportional to 11,769.50, 16,243.35 and 6,801.50 is: 9,386.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,769.50 : 16,243.35 = 6,801.50 : x
  2. Step 2: Convert to fraction form
    11,769.50/16,243.35 = 6,801.50/x
  3. Step 3: Cross multiply
    11,769.50x = 16,243.35 × 6,801.50
  4. Step 4: Simplify right side
    11,769.50x = 110,479,145.03
  5. Step 5: Solve for x
    x = 110,479,145.03/11,769.50
  6. Step 6: Final answer
    x = 9,386.90

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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.