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Finding the Fourth Proportional to 7,618.77, 11,432.07 and 5,769.27

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Solution

The fourth proportional to 7,618.77, 11,432.07 and 5,769.27 is: 8,656.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,618.77 : 11,432.07 = 5,769.27 : x
  2. Step 2: Convert to fraction form
    7,618.77/11,432.07 = 5,769.27/x
  3. Step 3: Cross multiply
    7,618.77x = 11,432.07 × 5,769.27
  4. Step 4: Simplify right side
    7,618.77x = 65,954,698.49
  5. Step 5: Solve for x
    x = 65,954,698.49/7,618.77
  6. Step 6: Final answer
    x = 8,656.87

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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.