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Finding the Fourth Proportional to 4,573.64, 6,869.78 and 3,015.88

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Solution

The fourth proportional to 4,573.64, 6,869.78 and 3,015.88 is: 4,529.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,573.64 : 6,869.78 = 3,015.88 : x
  2. Step 2: Convert to fraction form
    4,573.64/6,869.78 = 3,015.88/x
  3. Step 3: Cross multiply
    4,573.64x = 6,869.78 × 3,015.88
  4. Step 4: Simplify right side
    4,573.64x = 20,718,432.11
  5. Step 5: Solve for x
    x = 20,718,432.11/4,573.64
  6. Step 6: Final answer
    x = 4,529.97

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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.