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Finding the Fourth Proportional to 3,805.84, 5,257.37 and 3,606.33

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Solution

The fourth proportional to 3,805.84, 5,257.37 and 3,606.33 is: 4,981.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,805.84 : 5,257.37 = 3,606.33 : x
  2. Step 2: Convert to fraction form
    3,805.84/5,257.37 = 3,606.33/x
  3. Step 3: Cross multiply
    3,805.84x = 5,257.37 × 3,606.33
  4. Step 4: Simplify right side
    3,805.84x = 18,959,810.20
  5. Step 5: Solve for x
    x = 18,959,810.20/3,805.84
  6. Step 6: Final answer
    x = 4,981.77

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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.