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Finding the Fourth Proportional to 72,706.52, 100,336.58 and 44,427.80

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Solution

The fourth proportional to 72,706.52, 100,336.58 and 44,427.80 is: 61,311.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,706.52 : 100,336.58 = 44,427.80 : x
  2. Step 2: Convert to fraction form
    72,706.52/100,336.58 = 44,427.80/x
  3. Step 3: Cross multiply
    72,706.52x = 100,336.58 × 44,427.80
  4. Step 4: Simplify right side
    72,706.52x = 4,457,733,508.92
  5. Step 5: Solve for x
    x = 4,457,733,508.92/72,706.52
  6. Step 6: Final answer
    x = 61,311.33

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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.