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Finding the Fourth Proportional to 8,392.41, 11,561.52 and 5,869.80

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Solution

The fourth proportional to 8,392.41, 11,561.52 and 5,869.80 is: 8,086.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,392.41 : 11,561.52 = 5,869.80 : x
  2. Step 2: Convert to fraction form
    8,392.41/11,561.52 = 5,869.80/x
  3. Step 3: Cross multiply
    8,392.41x = 11,561.52 × 5,869.80
  4. Step 4: Simplify right side
    8,392.41x = 67,863,810.10
  5. Step 5: Solve for x
    x = 67,863,810.10/8,392.41
  6. Step 6: Final answer
    x = 8,086.33

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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.