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Finding the Fourth Proportional to 61,255.56, 84,270.23 and 58,631.16

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Solution

The fourth proportional to 61,255.56, 84,270.23 and 58,631.16 is: 80,659.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,255.56 : 84,270.23 = 58,631.16 : x
  2. Step 2: Convert to fraction form
    61,255.56/84,270.23 = 58,631.16/x
  3. Step 3: Cross multiply
    61,255.56x = 84,270.23 × 58,631.16
  4. Step 4: Simplify right side
    61,255.56x = 4,940,861,338.37
  5. Step 5: Solve for x
    x = 4,940,861,338.37/61,255.56
  6. Step 6: Final answer
    x = 80,659.80

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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.