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Finding the Fourth Proportional to 15,560.50, 21,474.03 and 8,846.41

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Solution

The fourth proportional to 15,560.50, 21,474.03 and 8,846.41 is: 12,208.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,560.50 : 21,474.03 = 8,846.41 : x
  2. Step 2: Convert to fraction form
    15,560.50/21,474.03 = 8,846.41/x
  3. Step 3: Cross multiply
    15,560.50x = 21,474.03 × 8,846.41
  4. Step 4: Simplify right side
    15,560.50x = 189,968,073.73
  5. Step 5: Solve for x
    x = 189,968,073.73/15,560.50
  6. Step 6: Final answer
    x = 12,208.35

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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.