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Finding the Fourth Proportional to 8,367.66, 12,555.02 and 4,205.48

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Solution

The fourth proportional to 8,367.66, 12,555.02 and 4,205.48 is: 6,309.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,367.66 : 12,555.02 = 4,205.48 : x
  2. Step 2: Convert to fraction form
    8,367.66/12,555.02 = 4,205.48/x
  3. Step 3: Cross multiply
    8,367.66x = 12,555.02 × 4,205.48
  4. Step 4: Simplify right side
    8,367.66x = 52,799,885.51
  5. Step 5: Solve for x
    x = 52,799,885.51/8,367.66
  6. Step 6: Final answer
    x = 6,309.99

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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.