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Finding the Fourth Proportional to 5,807.75, 8,712.71 and 2,729.75

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Solution

The fourth proportional to 5,807.75, 8,712.71 and 2,729.75 is: 4,095.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,807.75 : 8,712.71 = 2,729.75 : x
  2. Step 2: Convert to fraction form
    5,807.75/8,712.71 = 2,729.75/x
  3. Step 3: Cross multiply
    5,807.75x = 8,712.71 × 2,729.75
  4. Step 4: Simplify right side
    5,807.75x = 23,783,506.47
  5. Step 5: Solve for x
    x = 23,783,506.47/5,807.75
  6. Step 6: Final answer
    x = 4,095.13

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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.