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Finding the Fourth Proportional to 5,208.76, 7,188.78 and 3,351.16

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Solution

The fourth proportional to 5,208.76, 7,188.78 and 3,351.16 is: 4,625.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,208.76 : 7,188.78 = 3,351.16 : x
  2. Step 2: Convert to fraction form
    5,208.76/7,188.78 = 3,351.16/x
  3. Step 3: Cross multiply
    5,208.76x = 7,188.78 × 3,351.16
  4. Step 4: Simplify right side
    5,208.76x = 24,090,751.98
  5. Step 5: Solve for x
    x = 24,090,751.98/5,208.76
  6. Step 6: Final answer
    x = 4,625.05

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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.