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Finding the Fourth Proportional to 4,994.10, 7,491.15 and 2,653.20

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Solution

The fourth proportional to 4,994.10, 7,491.15 and 2,653.20 is: 3,979.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,994.10 : 7,491.15 = 2,653.20 : x
  2. Step 2: Convert to fraction form
    4,994.10/7,491.15 = 2,653.20/x
  3. Step 3: Cross multiply
    4,994.10x = 7,491.15 × 2,653.20
  4. Step 4: Simplify right side
    4,994.10x = 19,875,519.18
  5. Step 5: Solve for x
    x = 19,875,519.18/4,994.10
  6. Step 6: Final answer
    x = 3,979.80

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.