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Finding the Fourth Proportional to 9,289.12, 13,863.08 and 8,667.04

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Solution

The fourth proportional to 9,289.12, 13,863.08 and 8,667.04 is: 12,934.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,289.12 : 13,863.08 = 8,667.04 : x
  2. Step 2: Convert to fraction form
    9,289.12/13,863.08 = 8,667.04/x
  3. Step 3: Cross multiply
    9,289.12x = 13,863.08 × 8,667.04
  4. Step 4: Simplify right side
    9,289.12x = 120,151,868.88
  5. Step 5: Solve for x
    x = 120,151,868.88/9,289.12
  6. Step 6: Final answer
    x = 12,934.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.