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Finding the Fourth Proportional to 3,500.64, 5,220 and 3,262.32

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Solution

The fourth proportional to 3,500.64, 5,220 and 3,262.32 is: 4,864.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,500.64 : 5,220 = 3,262.32 : x
  2. Step 2: Convert to fraction form
    3,500.64/5,220 = 3,262.32/x
  3. Step 3: Cross multiply
    3,500.64x = 5,220 × 3,262.32
  4. Step 4: Simplify right side
    3,500.64x = 17,029,310.40
  5. Step 5: Solve for x
    x = 17,029,310.40/3,500.64
  6. Step 6: Final answer
    x = 4,864.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.