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Finding the Fourth Proportional to 2,963.70, 4,445.57 and 883.65

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Solution

The fourth proportional to 2,963.70, 4,445.57 and 883.65 is: 1,325.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,963.70 : 4,445.57 = 883.65 : x
  2. Step 2: Convert to fraction form
    2,963.70/4,445.57 = 883.65/x
  3. Step 3: Cross multiply
    2,963.70x = 4,445.57 × 883.65
  4. Step 4: Simplify right side
    2,963.70x = 3,928,327.93
  5. Step 5: Solve for x
    x = 3,928,327.93/2,963.70
  6. Step 6: Final answer
    x = 1,325.48

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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.