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Finding the Fourth Proportional to 8,836.76, 13,255.12 and 2,992.92

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Solution

The fourth proportional to 8,836.76, 13,255.12 and 2,992.92 is: 4,489.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,836.76 : 13,255.12 = 2,992.92 : x
  2. Step 2: Convert to fraction form
    8,836.76/13,255.12 = 2,992.92/x
  3. Step 3: Cross multiply
    8,836.76x = 13,255.12 × 2,992.92
  4. Step 4: Simplify right side
    8,836.76x = 39,671,513.75
  5. Step 5: Solve for x
    x = 39,671,513.75/8,836.76
  6. Step 6: Final answer
    x = 4,489.37

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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.