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Finding the Fourth Proportional to 3,523.92, 5,291.88 and 2,938.32

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Solution

The fourth proportional to 3,523.92, 5,291.88 and 2,938.32 is: 4,412.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,523.92 : 5,291.88 = 2,938.32 : x
  2. Step 2: Convert to fraction form
    3,523.92/5,291.88 = 2,938.32/x
  3. Step 3: Cross multiply
    3,523.92x = 5,291.88 × 2,938.32
  4. Step 4: Simplify right side
    3,523.92x = 15,549,236.84
  5. Step 5: Solve for x
    x = 15,549,236.84/3,523.92
  6. Step 6: Final answer
    x = 4,412.48

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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.