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Finding the Fourth Proportional to 12,211.56, 16,849.56 and 6,904.44

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Solution

The fourth proportional to 12,211.56, 16,849.56 and 6,904.44 is: 9,526.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,211.56 : 16,849.56 = 6,904.44 : x
  2. Step 2: Convert to fraction form
    12,211.56/16,849.56 = 6,904.44/x
  3. Step 3: Cross multiply
    12,211.56x = 16,849.56 × 6,904.44
  4. Step 4: Simplify right side
    12,211.56x = 116,336,776.05
  5. Step 5: Solve for x
    x = 116,336,776.05/12,211.56
  6. Step 6: Final answer
    x = 9,526.77

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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.