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Finding the Fourth Proportional to 7,929.42, 10,942.18 and 4,392.37

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Solution

The fourth proportional to 7,929.42, 10,942.18 and 4,392.37 is: 6,061.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.42 : 10,942.18 = 4,392.37 : x
  2. Step 2: Convert to fraction form
    7,929.42/10,942.18 = 4,392.37/x
  3. Step 3: Cross multiply
    7,929.42x = 10,942.18 × 4,392.37
  4. Step 4: Simplify right side
    7,929.42x = 48,062,103.17
  5. Step 5: Solve for x
    x = 48,062,103.17/7,929.42
  6. Step 6: Final answer
    x = 6,061.24

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.