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Finding the Fourth Proportional to 4,928.27, 7,395.21 and 1,807.86

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Solution

The fourth proportional to 4,928.27, 7,395.21 and 1,807.86 is: 2,712.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,928.27 : 7,395.21 = 1,807.86 : x
  2. Step 2: Convert to fraction form
    4,928.27/7,395.21 = 1,807.86/x
  3. Step 3: Cross multiply
    4,928.27x = 7,395.21 × 1,807.86
  4. Step 4: Simplify right side
    4,928.27x = 13,369,504.35
  5. Step 5: Solve for x
    x = 13,369,504.35/4,928.27
  6. Step 6: Final answer
    x = 2,712.82

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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.