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Finding the Fourth Proportional to 5,167.81, 7,118.93 and 3,747.33

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Solution

The fourth proportional to 5,167.81, 7,118.93 and 3,747.33 is: 5,162.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,167.81 : 7,118.93 = 3,747.33 : x
  2. Step 2: Convert to fraction form
    5,167.81/7,118.93 = 3,747.33/x
  3. Step 3: Cross multiply
    5,167.81x = 7,118.93 × 3,747.33
  4. Step 4: Simplify right side
    5,167.81x = 26,676,979.96
  5. Step 5: Solve for x
    x = 26,676,979.96/5,167.81
  6. Step 6: Final answer
    x = 5,162.14

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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.