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Finding the Fourth Proportional to 7,220.00, 10,825.31 and 4,747.31

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Solution

The fourth proportional to 7,220.00, 10,825.31 and 4,747.31 is: 7,117.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.00 : 10,825.31 = 4,747.31 : x
  2. Step 2: Convert to fraction form
    7,220.00/10,825.31 = 4,747.31/x
  3. Step 3: Cross multiply
    7,220.00x = 10,825.31 × 4,747.31
  4. Step 4: Simplify right side
    7,220.00x = 51,391,100.75
  5. Step 5: Solve for x
    x = 51,391,100.75/7,220.00
  6. Step 6: Final answer
    x = 7,117.88

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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.