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Finding the Fourth Proportional to 7,050.17, 9,729.10 and 3,906.29

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Solution

The fourth proportional to 7,050.17, 9,729.10 and 3,906.29 is: 5,390.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,050.17 : 9,729.10 = 3,906.29 : x
  2. Step 2: Convert to fraction form
    7,050.17/9,729.10 = 3,906.29/x
  3. Step 3: Cross multiply
    7,050.17x = 9,729.10 × 3,906.29
  4. Step 4: Simplify right side
    7,050.17x = 38,004,686.04
  5. Step 5: Solve for x
    x = 38,004,686.04/7,050.17
  6. Step 6: Final answer
    x = 5,390.61

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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.