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Finding the Fourth Proportional to 3,903.18, 5,383.05 and 3,052.68

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Solution

The fourth proportional to 3,903.18, 5,383.05 and 3,052.68 is: 4,210.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.18 : 5,383.05 = 3,052.68 : x
  2. Step 2: Convert to fraction form
    3,903.18/5,383.05 = 3,052.68/x
  3. Step 3: Cross multiply
    3,903.18x = 5,383.05 × 3,052.68
  4. Step 4: Simplify right side
    3,903.18x = 16,432,729.07
  5. Step 5: Solve for x
    x = 16,432,729.07/3,903.18
  6. Step 6: Final answer
    x = 4,210.09

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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.