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Finding the Fourth Proportional to 3,612.67, 4,987.81 and 3,233.89

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Solution

The fourth proportional to 3,612.67, 4,987.81 and 3,233.89 is: 4,464.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.67 : 4,987.81 = 3,233.89 : x
  2. Step 2: Convert to fraction form
    3,612.67/4,987.81 = 3,233.89/x
  3. Step 3: Cross multiply
    3,612.67x = 4,987.81 × 3,233.89
  4. Step 4: Simplify right side
    3,612.67x = 16,130,039.16
  5. Step 5: Solve for x
    x = 16,130,039.16/3,612.67
  6. Step 6: Final answer
    x = 4,464.86

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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.