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Finding the Fourth Proportional to 5,179.86, 7,770.18 and 3,552.54

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Solution

The fourth proportional to 5,179.86, 7,770.18 and 3,552.54 is: 5,329.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.86 : 7,770.18 = 3,552.54 : x
  2. Step 2: Convert to fraction form
    5,179.86/7,770.18 = 3,552.54/x
  3. Step 3: Cross multiply
    5,179.86x = 7,770.18 × 3,552.54
  4. Step 4: Simplify right side
    5,179.86x = 27,603,875.26
  5. Step 5: Solve for x
    x = 27,603,875.26/5,179.86
  6. Step 6: Final answer
    x = 5,329.08

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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.