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Finding the Fourth Proportional to 16,383.56, 22,609.26 and 8,931.56

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Solution

The fourth proportional to 16,383.56, 22,609.26 and 8,931.56 is: 12,325.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,383.56 : 22,609.26 = 8,931.56 : x
  2. Step 2: Convert to fraction form
    16,383.56/22,609.26 = 8,931.56/x
  3. Step 3: Cross multiply
    16,383.56x = 22,609.26 × 8,931.56
  4. Step 4: Simplify right side
    16,383.56x = 201,935,962.25
  5. Step 5: Solve for x
    x = 201,935,962.25/16,383.56
  6. Step 6: Final answer
    x = 12,325.52

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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.