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Finding the Fourth Proportional to 8,764.60, 13,118.10 and 6,806.20

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Solution

The fourth proportional to 8,764.60, 13,118.10 and 6,806.20 is: 10,186.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,764.60 : 13,118.10 = 6,806.20 : x
  2. Step 2: Convert to fraction form
    8,764.60/13,118.10 = 6,806.20/x
  3. Step 3: Cross multiply
    8,764.60x = 13,118.10 × 6,806.20
  4. Step 4: Simplify right side
    8,764.60x = 89,284,412.22
  5. Step 5: Solve for x
    x = 89,284,412.22/8,764.60
  6. Step 6: Final answer
    x = 10,186.94

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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.