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Finding the Fourth Proportional to 57,876.48, 79,411.20 and 56,893.44

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Solution

The fourth proportional to 57,876.48, 79,411.20 and 56,893.44 is: 78,062.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,876.48 : 79,411.20 = 56,893.44 : x
  2. Step 2: Convert to fraction form
    57,876.48/79,411.20 = 56,893.44/x
  3. Step 3: Cross multiply
    57,876.48x = 79,411.20 × 56,893.44
  4. Step 4: Simplify right side
    57,876.48x = 4,517,976,342.53
  5. Step 5: Solve for x
    x = 4,517,976,342.53/57,876.48
  6. Step 6: Final answer
    x = 78,062.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.