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Finding the Fourth Proportional to 8,448.30, 12,663.54 and 3,512.97

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Solution

The fourth proportional to 8,448.30, 12,663.54 and 3,512.97 is: 5,265.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,448.30 : 12,663.54 = 3,512.97 : x
  2. Step 2: Convert to fraction form
    8,448.30/12,663.54 = 3,512.97/x
  3. Step 3: Cross multiply
    8,448.30x = 12,663.54 × 3,512.97
  4. Step 4: Simplify right side
    8,448.30x = 44,486,636.11
  5. Step 5: Solve for x
    x = 44,486,636.11/8,448.30
  6. Step 6: Final answer
    x = 5,265.75

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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.