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Finding the Fourth Proportional to 8,857.56, 12,218.94 and 6,758.04

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Solution

The fourth proportional to 8,857.56, 12,218.94 and 6,758.04 is: 9,322.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,857.56 : 12,218.94 = 6,758.04 : x
  2. Step 2: Convert to fraction form
    8,857.56/12,218.94 = 6,758.04/x
  3. Step 3: Cross multiply
    8,857.56x = 12,218.94 × 6,758.04
  4. Step 4: Simplify right side
    8,857.56x = 82,576,085.28
  5. Step 5: Solve for x
    x = 82,576,085.28/8,857.56
  6. Step 6: Final answer
    x = 9,322.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.