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Finding the Fourth Proportional to 4,892.40, 6,751.20 and 2,796.48

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Solution

The fourth proportional to 4,892.40, 6,751.20 and 2,796.48 is: 3,858.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,892.40 : 6,751.20 = 2,796.48 : x
  2. Step 2: Convert to fraction form
    4,892.40/6,751.20 = 2,796.48/x
  3. Step 3: Cross multiply
    4,892.40x = 6,751.20 × 2,796.48
  4. Step 4: Simplify right side
    4,892.40x = 18,879,595.78
  5. Step 5: Solve for x
    x = 18,879,595.78/4,892.40
  6. Step 6: Final answer
    x = 3,858.96

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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.