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Finding the Fourth Proportional to 9,992.56, 14,986.96 and 3,329.16

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Solution

The fourth proportional to 9,992.56, 14,986.96 and 3,329.16 is: 4,993.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,992.56 : 14,986.96 = 3,329.16 : x
  2. Step 2: Convert to fraction form
    9,992.56/14,986.96 = 3,329.16/x
  3. Step 3: Cross multiply
    9,992.56x = 14,986.96 × 3,329.16
  4. Step 4: Simplify right side
    9,992.56x = 49,893,987.75
  5. Step 5: Solve for x
    x = 49,893,987.75/9,992.56
  6. Step 6: Final answer
    x = 4,993.11

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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.