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Finding the Fourth Proportional to 8,654.22, 11,942.16 and 5,116.74

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Solution

The fourth proportional to 8,654.22, 11,942.16 and 5,116.74 is: 7,060.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,654.22 : 11,942.16 = 5,116.74 : x
  2. Step 2: Convert to fraction form
    8,654.22/11,942.16 = 5,116.74/x
  3. Step 3: Cross multiply
    8,654.22x = 11,942.16 × 5,116.74
  4. Step 4: Simplify right side
    8,654.22x = 61,104,927.76
  5. Step 5: Solve for x
    x = 61,104,927.76/8,654.22
  6. Step 6: Final answer
    x = 7,060.71

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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.