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Finding the Fourth Proportional to 8,995.60, 13,467.72 and 7,149.34

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Solution

The fourth proportional to 8,995.60, 13,467.72 and 7,149.34 is: 10,703.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,995.60 : 13,467.72 = 7,149.34 : x
  2. Step 2: Convert to fraction form
    8,995.60/13,467.72 = 7,149.34/x
  3. Step 3: Cross multiply
    8,995.60x = 13,467.72 × 7,149.34
  4. Step 4: Simplify right side
    8,995.60x = 96,285,309.30
  5. Step 5: Solve for x
    x = 96,285,309.30/8,995.60
  6. Step 6: Final answer
    x = 10,703.60

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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.