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Finding the Fourth Proportional to 8,618.73, 11,893.53 and 5,267.17

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Solution

The fourth proportional to 8,618.73, 11,893.53 and 5,267.17 is: 7,268.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,618.73 : 11,893.53 = 5,267.17 : x
  2. Step 2: Convert to fraction form
    8,618.73/11,893.53 = 5,267.17/x
  3. Step 3: Cross multiply
    8,618.73x = 11,893.53 × 5,267.17
  4. Step 4: Simplify right side
    8,618.73x = 62,645,244.41
  5. Step 5: Solve for x
    x = 62,645,244.41/8,618.73
  6. Step 6: Final answer
    x = 7,268.50

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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.