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Finding the Fourth Proportional to 67,009.20, 100,708.20 and 58,455.60

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Solution

The fourth proportional to 67,009.20, 100,708.20 and 58,455.60 is: 87,852.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,009.20 : 100,708.20 = 58,455.60 : x
  2. Step 2: Convert to fraction form
    67,009.20/100,708.20 = 58,455.60/x
  3. Step 3: Cross multiply
    67,009.20x = 100,708.20 × 58,455.60
  4. Step 4: Simplify right side
    67,009.20x = 5,886,958,255.92
  5. Step 5: Solve for x
    x = 5,886,958,255.92/67,009.20
  6. Step 6: Final answer
    x = 87,852.99

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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.