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Finding the Fourth Proportional to 8,769.75, 12,102.54 and 5,043.75

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Solution

The fourth proportional to 8,769.75, 12,102.54 and 5,043.75 is: 6,960.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,769.75 : 12,102.54 = 5,043.75 : x
  2. Step 2: Convert to fraction form
    8,769.75/12,102.54 = 5,043.75/x
  3. Step 3: Cross multiply
    8,769.75x = 12,102.54 × 5,043.75
  4. Step 4: Simplify right side
    8,769.75x = 61,042,186.13
  5. Step 5: Solve for x
    x = 61,042,186.13/8,769.75
  6. Step 6: Final answer
    x = 6,960.54

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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.