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Finding the Fourth Proportional to 5,340.76, 8,015.16 and 3,708.64

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Solution

The fourth proportional to 5,340.76, 8,015.16 and 3,708.64 is: 5,565.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,340.76 : 8,015.16 = 3,708.64 : x
  2. Step 2: Convert to fraction form
    5,340.76/8,015.16 = 3,708.64/x
  3. Step 3: Cross multiply
    5,340.76x = 8,015.16 × 3,708.64
  4. Step 4: Simplify right side
    5,340.76x = 29,725,342.98
  5. Step 5: Solve for x
    x = 29,725,342.98/5,340.76
  6. Step 6: Final answer
    x = 5,565.75

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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.