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Finding the Fourth Proportional to 11,638.73, 16,062.63 and 6,860.16

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Solution

The fourth proportional to 11,638.73, 16,062.63 and 6,860.16 is: 9,467.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,638.73 : 16,062.63 = 6,860.16 : x
  2. Step 2: Convert to fraction form
    11,638.73/16,062.63 = 6,860.16/x
  3. Step 3: Cross multiply
    11,638.73x = 16,062.63 × 6,860.16
  4. Step 4: Simplify right side
    11,638.73x = 110,192,211.82
  5. Step 5: Solve for x
    x = 110,192,211.82/11,638.73
  6. Step 6: Final answer
    x = 9,467.72

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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.