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Finding the Fourth Proportional to 4,805.67, 7,208.51 and 2,613.81

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Solution

The fourth proportional to 4,805.67, 7,208.51 and 2,613.81 is: 3,920.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,805.67 : 7,208.51 = 2,613.81 : x
  2. Step 2: Convert to fraction form
    4,805.67/7,208.51 = 2,613.81/x
  3. Step 3: Cross multiply
    4,805.67x = 7,208.51 × 2,613.81
  4. Step 4: Simplify right side
    4,805.67x = 18,841,662.45
  5. Step 5: Solve for x
    x = 18,841,662.45/4,805.67
  6. Step 6: Final answer
    x = 3,920.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.