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Finding the Fourth Proportional to 7,149.88, 10,712.97 and 5,059.52

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Solution

The fourth proportional to 7,149.88, 10,712.97 and 5,059.52 is: 7,580.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149.88 : 10,712.97 = 5,059.52 : x
  2. Step 2: Convert to fraction form
    7,149.88/10,712.97 = 5,059.52/x
  3. Step 3: Cross multiply
    7,149.88x = 10,712.97 × 5,059.52
  4. Step 4: Simplify right side
    7,149.88x = 54,202,485.97
  5. Step 5: Solve for x
    x = 54,202,485.97/7,149.88
  6. Step 6: Final answer
    x = 7,580.89

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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.