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Finding the Fourth Proportional to 8,803.94, 13,206.63 and 3,609.86

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Solution

The fourth proportional to 8,803.94, 13,206.63 and 3,609.86 is: 5,415.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,803.94 : 13,206.63 = 3,609.86 : x
  2. Step 2: Convert to fraction form
    8,803.94/13,206.63 = 3,609.86/x
  3. Step 3: Cross multiply
    8,803.94x = 13,206.63 × 3,609.86
  4. Step 4: Simplify right side
    8,803.94x = 47,674,085.37
  5. Step 5: Solve for x
    x = 47,674,085.37/8,803.94
  6. Step 6: Final answer
    x = 5,415.09

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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.