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Finding the Fourth Proportional to 56,994.31, 85,493.21 and 19,553.86

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Solution

The fourth proportional to 56,994.31, 85,493.21 and 19,553.86 is: 29,331.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,994.31 : 85,493.21 = 19,553.86 : x
  2. Step 2: Convert to fraction form
    56,994.31/85,493.21 = 19,553.86/x
  3. Step 3: Cross multiply
    56,994.31x = 85,493.21 × 19,553.86
  4. Step 4: Simplify right side
    56,994.31x = 1,671,722,415.04
  5. Step 5: Solve for x
    x = 1,671,722,415.04/56,994.31
  6. Step 6: Final answer
    x = 29,331.39

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1.5x scale

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.