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Finding the Fourth Proportional to 8,858.97, 12,226.55 and 5,724.27

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Solution

The fourth proportional to 8,858.97, 12,226.55 and 5,724.27 is: 7,900.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858.97 : 12,226.55 = 5,724.27 : x
  2. Step 2: Convert to fraction form
    8,858.97/12,226.55 = 5,724.27/x
  3. Step 3: Cross multiply
    8,858.97x = 12,226.55 × 5,724.27
  4. Step 4: Simplify right side
    8,858.97x = 69,988,044.75
  5. Step 5: Solve for x
    x = 69,988,044.75/8,858.97
  6. Step 6: Final answer
    x = 7,900.25

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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.