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Finding the Fourth Proportional to 4,805.13, 6,631.52 and 2,709.21

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Solution

The fourth proportional to 4,805.13, 6,631.52 and 2,709.21 is: 3,738.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,805.13 : 6,631.52 = 2,709.21 : x
  2. Step 2: Convert to fraction form
    4,805.13/6,631.52 = 2,709.21/x
  3. Step 3: Cross multiply
    4,805.13x = 6,631.52 × 2,709.21
  4. Step 4: Simplify right side
    4,805.13x = 17,966,166.75
  5. Step 5: Solve for x
    x = 17,966,166.75/4,805.13
  6. Step 6: Final answer
    x = 3,738.96

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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.