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Finding the Fourth Proportional to 56,512.60, 84,768.90 and 14,959.60

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Solution

The fourth proportional to 56,512.60, 84,768.90 and 14,959.60 is: 22,439.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,512.60 : 84,768.90 = 14,959.60 : x
  2. Step 2: Convert to fraction form
    56,512.60/84,768.90 = 14,959.60/x
  3. Step 3: Cross multiply
    56,512.60x = 84,768.90 × 14,959.60
  4. Step 4: Simplify right side
    56,512.60x = 1,268,108,836.44
  5. Step 5: Solve for x
    x = 1,268,108,836.44/56,512.60
  6. Step 6: Final answer
    x = 22,439.40

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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.