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Finding the Fourth Proportional to 8,950.43, 12,353.22 and 5,173.08

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Solution

The fourth proportional to 8,950.43, 12,353.22 and 5,173.08 is: 7,139.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,950.43 : 12,353.22 = 5,173.08 : x
  2. Step 2: Convert to fraction form
    8,950.43/12,353.22 = 5,173.08/x
  3. Step 3: Cross multiply
    8,950.43x = 12,353.22 × 5,173.08
  4. Step 4: Simplify right side
    8,950.43x = 63,904,195.32
  5. Step 5: Solve for x
    x = 63,904,195.32/8,950.43
  6. Step 6: Final answer
    x = 7,139.79

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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.