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Finding the Fourth Proportional to 58,586.92, 80,849.52 and 31,728.80

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Solution

The fourth proportional to 58,586.92, 80,849.52 and 31,728.80 is: 43,785.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,586.92 : 80,849.52 = 31,728.80 : x
  2. Step 2: Convert to fraction form
    58,586.92/80,849.52 = 31,728.80/x
  3. Step 3: Cross multiply
    58,586.92x = 80,849.52 × 31,728.80
  4. Step 4: Simplify right side
    58,586.92x = 2,565,258,250.18
  5. Step 5: Solve for x
    x = 2,565,258,250.18/58,586.92
  6. Step 6: Final answer
    x = 43,785.51

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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.