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Finding the Fourth Proportional to 9,385.28, 12,950.88 and 5,192.48

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Solution

The fourth proportional to 9,385.28, 12,950.88 and 5,192.48 is: 7,165.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,385.28 : 12,950.88 = 5,192.48 : x
  2. Step 2: Convert to fraction form
    9,385.28/12,950.88 = 5,192.48/x
  3. Step 3: Cross multiply
    9,385.28x = 12,950.88 × 5,192.48
  4. Step 4: Simplify right side
    9,385.28x = 67,247,185.38
  5. Step 5: Solve for x
    x = 67,247,185.38/9,385.28
  6. Step 6: Final answer
    x = 7,165.18

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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.