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Finding the Fourth Proportional to 91,782.75, 126,731.88 and 59,532.69

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Solution

The fourth proportional to 91,782.75, 126,731.88 and 59,532.69 is: 82,201.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,782.75 : 126,731.88 = 59,532.69 : x
  2. Step 2: Convert to fraction form
    91,782.75/126,731.88 = 59,532.69/x
  3. Step 3: Cross multiply
    91,782.75x = 126,731.88 × 59,532.69
  4. Step 4: Simplify right side
    91,782.75x = 7,544,689,725.16
  5. Step 5: Solve for x
    x = 7,544,689,725.16/91,782.75
  6. Step 6: Final answer
    x = 82,201.61

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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.