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Finding the Fourth Proportional to 9,235.71, 12,745.21 and 5,043.96

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Solution

The fourth proportional to 9,235.71, 12,745.21 and 5,043.96 is: 6,960.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,235.71 : 12,745.21 = 5,043.96 : x
  2. Step 2: Convert to fraction form
    9,235.71/12,745.21 = 5,043.96/x
  3. Step 3: Cross multiply
    9,235.71x = 12,745.21 × 5,043.96
  4. Step 4: Simplify right side
    9,235.71x = 64,286,329.43
  5. Step 5: Solve for x
    x = 64,286,329.43/9,235.71
  6. Step 6: Final answer
    x = 6,960.63

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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.