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Finding the Fourth Proportional to 71,591.08, 98,795.69 and 39,762.94

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Solution

The fourth proportional to 71,591.08, 98,795.69 and 39,762.94 is: 54,872.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,591.08 : 98,795.69 = 39,762.94 : x
  2. Step 2: Convert to fraction form
    71,591.08/98,795.69 = 39,762.94/x
  3. Step 3: Cross multiply
    71,591.08x = 98,795.69 × 39,762.94
  4. Step 4: Simplify right side
    71,591.08x = 3,928,407,093.73
  5. Step 5: Solve for x
    x = 3,928,407,093.73/71,591.08
  6. Step 6: Final answer
    x = 54,872.86

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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.