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Finding the Fourth Proportional to 8,443.80, 11,655.36 and 5,799.96

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Solution

The fourth proportional to 8,443.80, 11,655.36 and 5,799.96 is: 8,005.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,443.80 : 11,655.36 = 5,799.96 : x
  2. Step 2: Convert to fraction form
    8,443.80/11,655.36 = 5,799.96/x
  3. Step 3: Cross multiply
    8,443.80x = 11,655.36 × 5,799.96
  4. Step 4: Simplify right side
    8,443.80x = 67,600,621.79
  5. Step 5: Solve for x
    x = 67,600,621.79/8,443.80
  6. Step 6: Final answer
    x = 8,005.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.