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Finding the Fourth Proportional to 58,125.88, 80,238.09 and 39,288.52

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Solution

The fourth proportional to 58,125.88, 80,238.09 and 39,288.52 is: 54,234.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,125.88 : 80,238.09 = 39,288.52 : x
  2. Step 2: Convert to fraction form
    58,125.88/80,238.09 = 39,288.52/x
  3. Step 3: Cross multiply
    58,125.88x = 80,238.09 × 39,288.52
  4. Step 4: Simplify right side
    58,125.88x = 3,152,435,803.73
  5. Step 5: Solve for x
    x = 3,152,435,803.73/58,125.88
  6. Step 6: Final answer
    x = 54,234.63

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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.