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Finding the Fourth Proportional to 8,456.48, 12,684.48 and 3,263.48

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Solution

The fourth proportional to 8,456.48, 12,684.48 and 3,263.48 is: 4,895.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,456.48 : 12,684.48 = 3,263.48 : x
  2. Step 2: Convert to fraction form
    8,456.48/12,684.48 = 3,263.48/x
  3. Step 3: Cross multiply
    8,456.48x = 12,684.48 × 3,263.48
  4. Step 4: Simplify right side
    8,456.48x = 41,395,546.79
  5. Step 5: Solve for x
    x = 41,395,546.79/8,456.48
  6. Step 6: Final answer
    x = 4,895.13

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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.