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Finding the Fourth Proportional to 3,482.70, 4,805.96 and 1,910.76

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Solution

The fourth proportional to 3,482.70, 4,805.96 and 1,910.76 is: 2,636.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,482.70 : 4,805.96 = 1,910.76 : x
  2. Step 2: Convert to fraction form
    3,482.70/4,805.96 = 1,910.76/x
  3. Step 3: Cross multiply
    3,482.70x = 4,805.96 × 1,910.76
  4. Step 4: Simplify right side
    3,482.70x = 9,183,036.13
  5. Step 5: Solve for x
    x = 9,183,036.13/3,482.70
  6. Step 6: Final answer
    x = 2,636.76

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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.