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Finding the Fourth Proportional to 67,084.12, 100,703.94 and 35,980.12

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Solution

The fourth proportional to 67,084.12, 100,703.94 and 35,980.12 is: 54,011.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,084.12 : 100,703.94 = 35,980.12 : x
  2. Step 2: Convert to fraction form
    67,084.12/100,703.94 = 35,980.12/x
  3. Step 3: Cross multiply
    67,084.12x = 100,703.94 × 35,980.12
  4. Step 4: Simplify right side
    67,084.12x = 3,623,339,845.67
  5. Step 5: Solve for x
    x = 3,623,339,845.67/67,084.12
  6. Step 6: Final answer
    x = 54,011.89

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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.