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Finding the Fourth Proportional to 3,155.65, 4,354.44 and 1,829.08

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Solution

The fourth proportional to 3,155.65, 4,354.44 and 1,829.08 is: 2,523.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.65 : 4,354.44 = 1,829.08 : x
  2. Step 2: Convert to fraction form
    3,155.65/4,354.44 = 1,829.08/x
  3. Step 3: Cross multiply
    3,155.65x = 4,354.44 × 1,829.08
  4. Step 4: Simplify right side
    3,155.65x = 7,964,619.12
  5. Step 5: Solve for x
    x = 7,964,619.12/3,155.65
  6. Step 6: Final answer
    x = 2,523.92

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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.