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Finding the Fourth Proportional to 70,672.75, 105,922.84 and 33,182.76

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Solution

The fourth proportional to 70,672.75, 105,922.84 and 33,182.76 is: 49,733.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,672.75 : 105,922.84 = 33,182.76 : x
  2. Step 2: Convert to fraction form
    70,672.75/105,922.84 = 33,182.76/x
  3. Step 3: Cross multiply
    70,672.75x = 105,922.84 × 33,182.76
  4. Step 4: Simplify right side
    70,672.75x = 3,514,812,554.71
  5. Step 5: Solve for x
    x = 3,514,812,554.71/70,672.75
  6. Step 6: Final answer
    x = 49,733.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.