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Finding the Fourth Proportional to 7,339.92, 10,125.72 and 4,686

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Solution

The fourth proportional to 7,339.92, 10,125.72 and 4,686 is: 6,464.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,339.92 : 10,125.72 = 4,686 : x
  2. Step 2: Convert to fraction form
    7,339.92/10,125.72 = 4,686/x
  3. Step 3: Cross multiply
    7,339.92x = 10,125.72 × 4,686
  4. Step 4: Simplify right side
    7,339.92x = 47,449,123.92
  5. Step 5: Solve for x
    x = 47,449,123.92/7,339.92
  6. Step 6: Final answer
    x = 6,464.53

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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.