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Finding the Fourth Proportional to 4,805.55, 6,631.88 and 2,709.63

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Solution

The fourth proportional to 4,805.55, 6,631.88 and 2,709.63 is: 3,739.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,805.55 : 6,631.88 = 2,709.63 : x
  2. Step 2: Convert to fraction form
    4,805.55/6,631.88 = 2,709.63/x
  3. Step 3: Cross multiply
    4,805.55x = 6,631.88 × 2,709.63
  4. Step 4: Simplify right side
    4,805.55x = 17,969,914.62
  5. Step 5: Solve for x
    x = 17,969,914.62/4,805.55
  6. Step 6: Final answer
    x = 3,739.41

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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.