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Finding the Fourth Proportional to 23,787.06, 35,680.59 and 7,989.09

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Solution

The fourth proportional to 23,787.06, 35,680.59 and 7,989.09 is: 11,983.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,787.06 : 35,680.59 = 7,989.09 : x
  2. Step 2: Convert to fraction form
    23,787.06/35,680.59 = 7,989.09/x
  3. Step 3: Cross multiply
    23,787.06x = 35,680.59 × 7,989.09
  4. Step 4: Simplify right side
    23,787.06x = 285,055,444.76
  5. Step 5: Solve for x
    x = 285,055,444.76/23,787.06
  6. Step 6: Final answer
    x = 11,983.64

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Double scale
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Similar ratio
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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.