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Finding the Fourth Proportional to 67,305.70, 100,958.55 and 66,009.70

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Solution

The fourth proportional to 67,305.70, 100,958.55 and 66,009.70 is: 99,014.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,305.70 : 100,958.55 = 66,009.70 : x
  2. Step 2: Convert to fraction form
    67,305.70/100,958.55 = 66,009.70/x
  3. Step 3: Cross multiply
    67,305.70x = 100,958.55 × 66,009.70
  4. Step 4: Simplify right side
    67,305.70x = 6,664,243,597.94
  5. Step 5: Solve for x
    x = 6,664,243,597.94/67,305.70
  6. Step 6: Final answer
    x = 99,014.55

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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.