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Finding the Fourth Proportional to 8,607.06, 12,900.21 and 4,444.80

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Solution

The fourth proportional to 8,607.06, 12,900.21 and 4,444.80 is: 6,661.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,607.06 : 12,900.21 = 4,444.80 : x
  2. Step 2: Convert to fraction form
    8,607.06/12,900.21 = 4,444.80/x
  3. Step 3: Cross multiply
    8,607.06x = 12,900.21 × 4,444.80
  4. Step 4: Simplify right side
    8,607.06x = 57,338,766.68
  5. Step 5: Solve for x
    x = 57,338,766.68/8,607.06
  6. Step 6: Final answer
    x = 6,661.83

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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.