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Finding the Fourth Proportional to 7,229.04, 9,972.09 and 4,992.09

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Solution

The fourth proportional to 7,229.04, 9,972.09 and 4,992.09 is: 6,886.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,229.04 : 9,972.09 = 4,992.09 : x
  2. Step 2: Convert to fraction form
    7,229.04/9,972.09 = 4,992.09/x
  3. Step 3: Cross multiply
    7,229.04x = 9,972.09 × 4,992.09
  4. Step 4: Simplify right side
    7,229.04x = 49,781,570.77
  5. Step 5: Solve for x
    x = 49,781,570.77/7,229.04
  6. Step 6: Final answer
    x = 6,886.33

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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.