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Finding the Fourth Proportional to 7,900.92, 11,854.80 and 3,224.25

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Solution

The fourth proportional to 7,900.92, 11,854.80 and 3,224.25 is: 4,837.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,900.92 : 11,854.80 = 3,224.25 : x
  2. Step 2: Convert to fraction form
    7,900.92/11,854.80 = 3,224.25/x
  3. Step 3: Cross multiply
    7,900.92x = 11,854.80 × 3,224.25
  4. Step 4: Simplify right side
    7,900.92x = 38,222,838.90
  5. Step 5: Solve for x
    x = 38,222,838.90/7,900.92
  6. Step 6: Final answer
    x = 4,837.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.