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Finding the Fourth Proportional to 7,374.44, 10,178.04 and 4,392

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Solution

The fourth proportional to 7,374.44, 10,178.04 and 4,392 is: 6,061.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,374.44 : 10,178.04 = 4,392 : x
  2. Step 2: Convert to fraction form
    7,374.44/10,178.04 = 4,392/x
  3. Step 3: Cross multiply
    7,374.44x = 10,178.04 × 4,392
  4. Step 4: Simplify right side
    7,374.44x = 44,701,951.68
  5. Step 5: Solve for x
    x = 44,701,951.68/7,374.44
  6. Step 6: Final answer
    x = 6,061.74

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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.