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Finding the Fourth Proportional to 9,383.91, 12,950.21 and 5,192.16

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Solution

The fourth proportional to 9,383.91, 12,950.21 and 5,192.16 is: 7,165.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,383.91 : 12,950.21 = 5,192.16 : x
  2. Step 2: Convert to fraction form
    9,383.91/12,950.21 = 5,192.16/x
  3. Step 3: Cross multiply
    9,383.91x = 12,950.21 × 5,192.16
  4. Step 4: Simplify right side
    9,383.91x = 67,239,536.39
  5. Step 5: Solve for x
    x = 67,239,536.39/9,383.91
  6. Step 6: Final answer
    x = 7,165.41

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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.