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Finding the Fourth Proportional to 12,060.71, 18,091.07 and 6,516.66

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Solution

The fourth proportional to 12,060.71, 18,091.07 and 6,516.66 is: 9,774.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,060.71 : 18,091.07 = 6,516.66 : x
  2. Step 2: Convert to fraction form
    12,060.71/18,091.07 = 6,516.66/x
  3. Step 3: Cross multiply
    12,060.71x = 18,091.07 × 6,516.66
  4. Step 4: Simplify right side
    12,060.71x = 117,893,352.23
  5. Step 5: Solve for x
    x = 117,893,352.23/12,060.71
  6. Step 6: Final answer
    x = 9,774.99

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Similar ratio
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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.