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Finding the Fourth Proportional to 7,906.06, 11,871.42 and 7,555.51

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Solution

The fourth proportional to 7,906.06, 11,871.42 and 7,555.51 is: 11,345.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,906.06 : 11,871.42 = 7,555.51 : x
  2. Step 2: Convert to fraction form
    7,906.06/11,871.42 = 7,555.51/x
  3. Step 3: Cross multiply
    7,906.06x = 11,871.42 × 7,555.51
  4. Step 4: Simplify right side
    7,906.06x = 89,694,632.52
  5. Step 5: Solve for x
    x = 89,694,632.52/7,906.06
  6. Step 6: Final answer
    x = 11,345.05

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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.