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Finding the Fourth Proportional to 11,050.79, 16,581.03 and 5,855.45

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Solution

The fourth proportional to 11,050.79, 16,581.03 and 5,855.45 is: 8,785.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,050.79 : 16,581.03 = 5,855.45 : x
  2. Step 2: Convert to fraction form
    11,050.79/16,581.03 = 5,855.45/x
  3. Step 3: Cross multiply
    11,050.79x = 16,581.03 × 5,855.45
  4. Step 4: Simplify right side
    11,050.79x = 97,089,309.21
  5. Step 5: Solve for x
    x = 97,089,309.21/11,050.79
  6. Step 6: Final answer
    x = 8,785.74

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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.