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Finding the Fourth Proportional to 16,307.64, 22,504.53 and 8,855.64

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Solution

The fourth proportional to 16,307.64, 22,504.53 and 8,855.64 is: 12,220.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,307.64 : 22,504.53 = 8,855.64 : x
  2. Step 2: Convert to fraction form
    16,307.64/22,504.53 = 8,855.64/x
  3. Step 3: Cross multiply
    16,307.64x = 22,504.53 × 8,855.64
  4. Step 4: Simplify right side
    16,307.64x = 199,292,016.05
  5. Step 5: Solve for x
    x = 199,292,016.05/16,307.64
  6. Step 6: Final answer
    x = 12,220.78

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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.