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Finding the Fourth Proportional to 9,049.92, 12,486.96 and 5,506.80

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Solution

The fourth proportional to 9,049.92, 12,486.96 and 5,506.80 is: 7,598.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,049.92 : 12,486.96 = 5,506.80 : x
  2. Step 2: Convert to fraction form
    9,049.92/12,486.96 = 5,506.80/x
  3. Step 3: Cross multiply
    9,049.92x = 12,486.96 × 5,506.80
  4. Step 4: Simplify right side
    9,049.92x = 68,763,191.33
  5. Step 5: Solve for x
    x = 68,763,191.33/9,049.92
  6. Step 6: Final answer
    x = 7,598.21

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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.