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Finding the Fourth Proportional to 72,868.68, 100,558.53 and 41,037.57

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Solution

The fourth proportional to 72,868.68, 100,558.53 and 41,037.57 is: 56,631.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,868.68 : 100,558.53 = 41,037.57 : x
  2. Step 2: Convert to fraction form
    72,868.68/100,558.53 = 41,037.57/x
  3. Step 3: Cross multiply
    72,868.68x = 100,558.53 × 41,037.57
  4. Step 4: Simplify right side
    72,868.68x = 4,126,677,713.97
  5. Step 5: Solve for x
    x = 4,126,677,713.97/72,868.68
  6. Step 6: Final answer
    x = 56,631.71

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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.