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Finding the Fourth Proportional to 5,769.75, 7,962.63 and 3,285.75

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Solution

The fourth proportional to 5,769.75, 7,962.63 and 3,285.75 is: 4,534.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,769.75 : 7,962.63 = 3,285.75 : x
  2. Step 2: Convert to fraction form
    5,769.75/7,962.63 = 3,285.75/x
  3. Step 3: Cross multiply
    5,769.75x = 7,962.63 × 3,285.75
  4. Step 4: Simplify right side
    5,769.75x = 26,163,211.52
  5. Step 5: Solve for x
    x = 26,163,211.52/5,769.75
  6. Step 6: Final answer
    x = 4,534.55

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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.