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Finding the Fourth Proportional to 3,155.01, 4,353 and 2,036.61

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Solution

The fourth proportional to 3,155.01, 4,353 and 2,036.61 is: 2,809.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.01 : 4,353 = 2,036.61 : x
  2. Step 2: Convert to fraction form
    3,155.01/4,353 = 2,036.61/x
  3. Step 3: Cross multiply
    3,155.01x = 4,353 × 2,036.61
  4. Step 4: Simplify right side
    3,155.01x = 8,865,363.33
  5. Step 5: Solve for x
    x = 8,865,363.33/3,155.01
  6. Step 6: Final answer
    x = 2,809.93

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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.