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Finding the Fourth Proportional to 8,803.52, 13,206.72 and 2,958.80

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Solution

The fourth proportional to 8,803.52, 13,206.72 and 2,958.80 is: 4,438.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,803.52 : 13,206.72 = 2,958.80 : x
  2. Step 2: Convert to fraction form
    8,803.52/13,206.72 = 2,958.80/x
  3. Step 3: Cross multiply
    8,803.52x = 13,206.72 × 2,958.80
  4. Step 4: Simplify right side
    8,803.52x = 39,076,043.14
  5. Step 5: Solve for x
    x = 39,076,043.14/8,803.52
  6. Step 6: Final answer
    x = 4,438.68

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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.