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Finding the Fourth Proportional to 3,591.37, 5,386.96 and 958.87

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Solution

The fourth proportional to 3,591.37, 5,386.96 and 958.87 is: 1,438.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,591.37 : 5,386.96 = 958.87 : x
  2. Step 2: Convert to fraction form
    3,591.37/5,386.96 = 958.87/x
  3. Step 3: Cross multiply
    3,591.37x = 5,386.96 × 958.87
  4. Step 4: Simplify right side
    3,591.37x = 5,165,394.34
  5. Step 5: Solve for x
    x = 5,165,394.34/3,591.37
  6. Step 6: Final answer
    x = 1,438.28

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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.