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Finding the Fourth Proportional to 5,807.92, 8,014.92 and 3,155.38

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Solution

The fourth proportional to 5,807.92, 8,014.92 and 3,155.38 is: 4,354.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,807.92 : 8,014.92 = 3,155.38 : x
  2. Step 2: Convert to fraction form
    5,807.92/8,014.92 = 3,155.38/x
  3. Step 3: Cross multiply
    5,807.92x = 8,014.92 × 3,155.38
  4. Step 4: Simplify right side
    5,807.92x = 25,290,118.27
  5. Step 5: Solve for x
    x = 25,290,118.27/5,807.92
  6. Step 6: Final answer
    x = 4,354.42

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1.5x scale

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.