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Finding the Fourth Proportional to 2,833.65, 3,909.89 and 1,654.77

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Solution

The fourth proportional to 2,833.65, 3,909.89 and 1,654.77 is: 2,283.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,833.65 : 3,909.89 = 1,654.77 : x
  2. Step 2: Convert to fraction form
    2,833.65/3,909.89 = 1,654.77/x
  3. Step 3: Cross multiply
    2,833.65x = 3,909.89 × 1,654.77
  4. Step 4: Simplify right side
    2,833.65x = 6,469,960.40
  5. Step 5: Solve for x
    x = 6,469,960.40/2,833.65
  6. Step 6: Final answer
    x = 2,283.26

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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.