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Finding the Fourth Proportional to 2,311.58, 3,468.53 and 925.92

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Solution

The fourth proportional to 2,311.58, 3,468.53 and 925.92 is: 1,389.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,311.58 : 3,468.53 = 925.92 : x
  2. Step 2: Convert to fraction form
    2,311.58/3,468.53 = 925.92/x
  3. Step 3: Cross multiply
    2,311.58x = 3,468.53 × 925.92
  4. Step 4: Simplify right side
    2,311.58x = 3,211,583.61
  5. Step 5: Solve for x
    x = 3,211,583.61/2,311.58
  6. Step 6: Final answer
    x = 1,389.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.