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Finding the Fourth Proportional to 7,208.20, 9,951.86 and 5,526.48

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Solution

The fourth proportional to 7,208.20, 9,951.86 and 5,526.48 is: 7,630.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,208.20 : 9,951.86 = 5,526.48 : x
  2. Step 2: Convert to fraction form
    7,208.20/9,951.86 = 5,526.48/x
  3. Step 3: Cross multiply
    7,208.20x = 9,951.86 × 5,526.48
  4. Step 4: Simplify right side
    7,208.20x = 54,998,755.25
  5. Step 5: Solve for x
    x = 54,998,755.25/7,208.20
  6. Step 6: Final answer
    x = 7,630.03

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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.