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Finding the Fourth Proportional to 8,952.64, 13,415.28 and 3,755.68

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Solution

The fourth proportional to 8,952.64, 13,415.28 and 3,755.68 is: 5,627.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,952.64 : 13,415.28 = 3,755.68 : x
  2. Step 2: Convert to fraction form
    8,952.64/13,415.28 = 3,755.68/x
  3. Step 3: Cross multiply
    8,952.64x = 13,415.28 × 3,755.68
  4. Step 4: Simplify right side
    8,952.64x = 50,383,498.79
  5. Step 5: Solve for x
    x = 50,383,498.79/8,952.64
  6. Step 6: Final answer
    x = 5,627.78

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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.