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Finding the Fourth Proportional to 3,885.53, 5,828.22 and 963.81

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Solution

The fourth proportional to 3,885.53, 5,828.22 and 963.81 is: 1,445.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,885.53 : 5,828.22 = 963.81 : x
  2. Step 2: Convert to fraction form
    3,885.53/5,828.22 = 963.81/x
  3. Step 3: Cross multiply
    3,885.53x = 5,828.22 × 963.81
  4. Step 4: Simplify right side
    3,885.53x = 5,617,296.72
  5. Step 5: Solve for x
    x = 5,617,296.72/3,885.53
  6. Step 6: Final answer
    x = 1,445.70

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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.