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Finding the Fourth Proportional to 2,995.40, 4,493.10 and 2,776.70

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Solution

The fourth proportional to 2,995.40, 4,493.10 and 2,776.70 is: 4,165.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,995.40 : 4,493.10 = 2,776.70 : x
  2. Step 2: Convert to fraction form
    2,995.40/4,493.10 = 2,776.70/x
  3. Step 3: Cross multiply
    2,995.40x = 4,493.10 × 2,776.70
  4. Step 4: Simplify right side
    2,995.40x = 12,475,990.77
  5. Step 5: Solve for x
    x = 12,475,990.77/2,995.40
  6. Step 6: Final answer
    x = 4,165.05

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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.