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Finding the Fourth Proportional to 55,793.21, 77,008.03 and 31,933.73

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Solution

The fourth proportional to 55,793.21, 77,008.03 and 31,933.73 is: 44,076.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,793.21 : 77,008.03 = 31,933.73 : x
  2. Step 2: Convert to fraction form
    55,793.21/77,008.03 = 31,933.73/x
  3. Step 3: Cross multiply
    55,793.21x = 77,008.03 × 31,933.73
  4. Step 4: Simplify right side
    55,793.21x = 2,459,153,172.98
  5. Step 5: Solve for x
    x = 2,459,153,172.98/55,793.21
  6. Step 6: Final answer
    x = 44,076.21

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1.5x scale

Why These Related Problems?

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