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Finding the Fourth Proportional to 16,803.34, 25,220.59 and 8,489.21

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Solution

The fourth proportional to 16,803.34, 25,220.59 and 8,489.21 is: 12,741.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,803.34 : 25,220.59 = 8,489.21 : x
  2. Step 2: Convert to fraction form
    16,803.34/25,220.59 = 8,489.21/x
  3. Step 3: Cross multiply
    16,803.34x = 25,220.59 × 8,489.21
  4. Step 4: Simplify right side
    16,803.34x = 214,102,779.34
  5. Step 5: Solve for x
    x = 214,102,779.34/16,803.34
  6. Step 6: Final answer
    x = 12,741.68

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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.