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Finding the Fourth Proportional to 8,653.84, 11,942.46 and 5,071.38

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Solution

The fourth proportional to 8,653.84, 11,942.46 and 5,071.38 is: 6,998.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,653.84 : 11,942.46 = 5,071.38 : x
  2. Step 2: Convert to fraction form
    8,653.84/11,942.46 = 5,071.38/x
  3. Step 3: Cross multiply
    8,653.84x = 11,942.46 × 5,071.38
  4. Step 4: Simplify right side
    8,653.84x = 60,564,708.01
  5. Step 5: Solve for x
    x = 60,564,708.01/8,653.84
  6. Step 6: Final answer
    x = 6,998.60

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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.