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Finding the Fourth Proportional to 9,425.76, 13,007.94 and 5,234

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Solution

The fourth proportional to 9,425.76, 13,007.94 and 5,234 is: 7,223.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,425.76 : 13,007.94 = 5,234 : x
  2. Step 2: Convert to fraction form
    9,425.76/13,007.94 = 5,234/x
  3. Step 3: Cross multiply
    9,425.76x = 13,007.94 × 5,234
  4. Step 4: Simplify right side
    9,425.76x = 68,083,557.96
  5. Step 5: Solve for x
    x = 68,083,557.96/9,425.76
  6. Step 6: Final answer
    x = 7,223.14

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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.