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Finding the Fourth Proportional to 76,893.84, 115,285.38 and 47,250.42

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Solution

The fourth proportional to 76,893.84, 115,285.38 and 47,250.42 is: 70,841.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,893.84 : 115,285.38 = 47,250.42 : x
  2. Step 2: Convert to fraction form
    76,893.84/115,285.38 = 47,250.42/x
  3. Step 3: Cross multiply
    76,893.84x = 115,285.38 × 47,250.42
  4. Step 4: Simplify right side
    76,893.84x = 5,447,282,624.86
  5. Step 5: Solve for x
    x = 5,447,282,624.86/76,893.84
  6. Step 6: Final answer
    x = 70,841.60

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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.