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Finding the Fourth Proportional to 58,627.70, 80,906.56 and 31,770.24

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Solution

The fourth proportional to 58,627.70, 80,906.56 and 31,770.24 is: 43,843.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,627.70 : 80,906.56 = 31,770.24 : x
  2. Step 2: Convert to fraction form
    58,627.70/80,906.56 = 31,770.24/x
  3. Step 3: Cross multiply
    58,627.70x = 80,906.56 × 31,770.24
  4. Step 4: Simplify right side
    58,627.70x = 2,570,420,828.77
  5. Step 5: Solve for x
    x = 2,570,420,828.77/58,627.70
  6. Step 6: Final answer
    x = 43,843.11

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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.