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Finding the Fourth Proportional to 7,073.06, 9,760.85 and 3,886.61

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Solution

The fourth proportional to 7,073.06, 9,760.85 and 3,886.61 is: 5,363.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,073.06 : 9,760.85 = 3,886.61 : x
  2. Step 2: Convert to fraction form
    7,073.06/9,760.85 = 3,886.61/x
  3. Step 3: Cross multiply
    7,073.06x = 9,760.85 × 3,886.61
  4. Step 4: Simplify right side
    7,073.06x = 37,936,548.98
  5. Step 5: Solve for x
    x = 37,936,548.98/7,073.06
  6. Step 6: Final answer
    x = 5,363.53

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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.