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Finding the Fourth Proportional to 9,376, 12,939.12 and 5,650.24

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Solution

The fourth proportional to 9,376, 12,939.12 and 5,650.24 is: 7,797.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,376 : 12,939.12 = 5,650.24 : x
  2. Step 2: Convert to fraction form
    9,376/12,939.12 = 5,650.24/x
  3. Step 3: Cross multiply
    9,376x = 12,939.12 × 5,650.24
  4. Step 4: Simplify right side
    9,376x = 73,109,133.39
  5. Step 5: Solve for x
    x = 73,109,133.39/9,376
  6. Step 6: Final answer
    x = 7,797.48

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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.