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Finding the Fourth Proportional to 2,789.94, 4,165.31 and 2,303.94

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Solution

The fourth proportional to 2,789.94, 4,165.31 and 2,303.94 is: 3,439.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.94 : 4,165.31 = 2,303.94 : x
  2. Step 2: Convert to fraction form
    2,789.94/4,165.31 = 2,303.94/x
  3. Step 3: Cross multiply
    2,789.94x = 4,165.31 × 2,303.94
  4. Step 4: Simplify right side
    2,789.94x = 9,596,612.80
  5. Step 5: Solve for x
    x = 9,596,612.80/2,789.94
  6. Step 6: Final answer
    x = 3,439.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.