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Finding the Fourth Proportional to 5,056.60, 6,978.24 and 2,818.36

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Solution

The fourth proportional to 5,056.60, 6,978.24 and 2,818.36 is: 3,889.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,056.60 : 6,978.24 = 2,818.36 : x
  2. Step 2: Convert to fraction form
    5,056.60/6,978.24 = 2,818.36/x
  3. Step 3: Cross multiply
    5,056.60x = 6,978.24 × 2,818.36
  4. Step 4: Simplify right side
    5,056.60x = 19,667,192.49
  5. Step 5: Solve for x
    x = 19,667,192.49/5,056.60
  6. Step 6: Final answer
    x = 3,889.41

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.