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Finding the Fourth Proportional to 8,701.52, 13,056.12 and 8,674.64

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Solution

The fourth proportional to 8,701.52, 13,056.12 and 8,674.64 is: 13,015.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,701.52 : 13,056.12 = 8,674.64 : x
  2. Step 2: Convert to fraction form
    8,701.52/13,056.12 = 8,674.64/x
  3. Step 3: Cross multiply
    8,701.52x = 13,056.12 × 8,674.64
  4. Step 4: Simplify right side
    8,701.52x = 113,257,140.80
  5. Step 5: Solve for x
    x = 113,257,140.80/8,701.52
  6. Step 6: Final answer
    x = 13,015.79

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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.