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Finding the Fourth Proportional to 12,562.59, 18,847.05 and 8,872.05

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Solution

The fourth proportional to 12,562.59, 18,847.05 and 8,872.05 is: 13,310.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,562.59 : 18,847.05 = 8,872.05 : x
  2. Step 2: Convert to fraction form
    12,562.59/18,847.05 = 8,872.05/x
  3. Step 3: Cross multiply
    12,562.59x = 18,847.05 × 8,872.05
  4. Step 4: Simplify right side
    12,562.59x = 167,211,969.95
  5. Step 5: Solve for x
    x = 167,211,969.95/12,562.59
  6. Step 6: Final answer
    x = 13,310.31

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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.