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Finding the Fourth Proportional to 4,635.72, 6,397 and 2,539.72

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Solution

The fourth proportional to 4,635.72, 6,397 and 2,539.72 is: 3,504.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,635.72 : 6,397 = 2,539.72 : x
  2. Step 2: Convert to fraction form
    4,635.72/6,397 = 2,539.72/x
  3. Step 3: Cross multiply
    4,635.72x = 6,397 × 2,539.72
  4. Step 4: Simplify right side
    4,635.72x = 16,246,588.84
  5. Step 5: Solve for x
    x = 16,246,588.84/4,635.72
  6. Step 6: Final answer
    x = 3,504.65

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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.