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Finding the Fourth Proportional to 5,636.67, 7,780.79 and 5,046.18

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Solution

The fourth proportional to 5,636.67, 7,780.79 and 5,046.18 is: 6,965.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,636.67 : 7,780.79 = 5,046.18 : x
  2. Step 2: Convert to fraction form
    5,636.67/7,780.79 = 5,046.18/x
  3. Step 3: Cross multiply
    5,636.67x = 7,780.79 × 5,046.18
  4. Step 4: Simplify right side
    5,636.67x = 39,263,241.65
  5. Step 5: Solve for x
    x = 39,263,241.65/5,636.67
  6. Step 6: Final answer
    x = 6,965.68

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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.