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Finding the Fourth Proportional to 8,815.95, 12,165.96 and 4,836.96

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Solution

The fourth proportional to 8,815.95, 12,165.96 and 4,836.96 is: 6,674.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,815.95 : 12,165.96 = 4,836.96 : x
  2. Step 2: Convert to fraction form
    8,815.95/12,165.96 = 4,836.96/x
  3. Step 3: Cross multiply
    8,815.95x = 12,165.96 × 4,836.96
  4. Step 4: Simplify right side
    8,815.95x = 58,846,261.88
  5. Step 5: Solve for x
    x = 58,846,261.88/8,815.95
  6. Step 6: Final answer
    x = 6,674.98

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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.