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Finding the Fourth Proportional to 8,674.08, 13,012.80 and 2,829.12

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Solution

The fourth proportional to 8,674.08, 13,012.80 and 2,829.12 is: 4,244.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,674.08 : 13,012.80 = 2,829.12 : x
  2. Step 2: Convert to fraction form
    8,674.08/13,012.80 = 2,829.12/x
  3. Step 3: Cross multiply
    8,674.08x = 13,012.80 × 2,829.12
  4. Step 4: Simplify right side
    8,674.08x = 36,814,772.74
  5. Step 5: Solve for x
    x = 36,814,772.74/8,674.08
  6. Step 6: Final answer
    x = 4,244.23

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1.5x scale

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.