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Finding the Fourth Proportional to 8,328.68, 11,472.02 and 5,806.28

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Solution

The fourth proportional to 8,328.68, 11,472.02 and 5,806.28 is: 7,997.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,328.68 : 11,472.02 = 5,806.28 : x
  2. Step 2: Convert to fraction form
    8,328.68/11,472.02 = 5,806.28/x
  3. Step 3: Cross multiply
    8,328.68x = 11,472.02 × 5,806.28
  4. Step 4: Simplify right side
    8,328.68x = 66,609,760.29
  5. Step 5: Solve for x
    x = 66,609,760.29/8,328.68
  6. Step 6: Final answer
    x = 7,997.64

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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.