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Finding the Fourth Proportional to 8,992.94, 13,486.80 and 3,445.86

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Solution

The fourth proportional to 8,992.94, 13,486.80 and 3,445.86 is: 5,167.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,992.94 : 13,486.80 = 3,445.86 : x
  2. Step 2: Convert to fraction form
    8,992.94/13,486.80 = 3,445.86/x
  3. Step 3: Cross multiply
    8,992.94x = 13,486.80 × 3,445.86
  4. Step 4: Simplify right side
    8,992.94x = 46,473,624.65
  5. Step 5: Solve for x
    x = 46,473,624.65/8,992.94
  6. Step 6: Final answer
    x = 5,167.79

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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.