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Finding the Fourth Proportional to 7,608.75, 10,500.30 and 4,251.71

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Solution

The fourth proportional to 7,608.75, 10,500.30 and 4,251.71 is: 5,867.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,608.75 : 10,500.30 = 4,251.71 : x
  2. Step 2: Convert to fraction form
    7,608.75/10,500.30 = 4,251.71/x
  3. Step 3: Cross multiply
    7,608.75x = 10,500.30 × 4,251.71
  4. Step 4: Simplify right side
    7,608.75x = 44,644,178.01
  5. Step 5: Solve for x
    x = 44,644,178.01/7,608.75
  6. Step 6: Final answer
    x = 5,867.48

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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.