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Finding the Fourth Proportional to 9,343.20, 14,014.80 and 8,767.20

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Solution

The fourth proportional to 9,343.20, 14,014.80 and 8,767.20 is: 13,150.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,343.20 : 14,014.80 = 8,767.20 : x
  2. Step 2: Convert to fraction form
    9,343.20/14,014.80 = 8,767.20/x
  3. Step 3: Cross multiply
    9,343.20x = 14,014.80 × 8,767.20
  4. Step 4: Simplify right side
    9,343.20x = 122,870,554.56
  5. Step 5: Solve for x
    x = 122,870,554.56/9,343.20
  6. Step 6: Final answer
    x = 13,150.80

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Similar ratio
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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.