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Finding the Fourth Proportional to 4,157.92, 5,736.99 and 2,479.60

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Solution

The fourth proportional to 4,157.92, 5,736.99 and 2,479.60 is: 3,421.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,157.92 : 5,736.99 = 2,479.60 : x
  2. Step 2: Convert to fraction form
    4,157.92/5,736.99 = 2,479.60/x
  3. Step 3: Cross multiply
    4,157.92x = 5,736.99 × 2,479.60
  4. Step 4: Simplify right side
    4,157.92x = 14,225,440.40
  5. Step 5: Solve for x
    x = 14,225,440.40/4,157.92
  6. Step 6: Final answer
    x = 3,421.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.