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Finding the Fourth Proportional to 12,245.73, 16,899.03 and 6,656.73

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Solution

The fourth proportional to 12,245.73, 16,899.03 and 6,656.73 is: 9,186.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,245.73 : 16,899.03 = 6,656.73 : x
  2. Step 2: Convert to fraction form
    12,245.73/16,899.03 = 6,656.73/x
  3. Step 3: Cross multiply
    12,245.73x = 16,899.03 × 6,656.73
  4. Step 4: Simplify right side
    12,245.73x = 112,492,279.97
  5. Step 5: Solve for x
    x = 112,492,279.97/12,245.73
  6. Step 6: Final answer
    x = 9,186.25

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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.