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Finding the Fourth Proportional to 3,427.99, 5,141.95 and 963.50

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Solution

The fourth proportional to 3,427.99, 5,141.95 and 963.50 is: 1,445.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.99 : 5,141.95 = 963.50 : x
  2. Step 2: Convert to fraction form
    3,427.99/5,141.95 = 963.50/x
  3. Step 3: Cross multiply
    3,427.99x = 5,141.95 × 963.50
  4. Step 4: Simplify right side
    3,427.99x = 4,954,240.71
  5. Step 5: Solve for x
    x = 4,954,240.71/3,427.99
  6. Step 6: Final answer
    x = 1,445.23

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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.