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Finding the Fourth Proportional to 58,420.56, 80,620.32 and 31,924.56

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Solution

The fourth proportional to 58,420.56, 80,620.32 and 31,924.56 is: 44,055.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,420.56 : 80,620.32 = 31,924.56 : x
  2. Step 2: Convert to fraction form
    58,420.56/80,620.32 = 31,924.56/x
  3. Step 3: Cross multiply
    58,420.56x = 80,620.32 × 31,924.56
  4. Step 4: Simplify right side
    58,420.56x = 2,573,768,243.06
  5. Step 5: Solve for x
    x = 2,573,768,243.06/58,420.56
  6. Step 6: Final answer
    x = 44,055.86

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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.