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Finding the Fourth Proportional to 17,787.84, 26,685.60 and 6,697.92

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Solution

The fourth proportional to 17,787.84, 26,685.60 and 6,697.92 is: 10,048.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,787.84 : 26,685.60 = 6,697.92 : x
  2. Step 2: Convert to fraction form
    17,787.84/26,685.60 = 6,697.92/x
  3. Step 3: Cross multiply
    17,787.84x = 26,685.60 × 6,697.92
  4. Step 4: Simplify right side
    17,787.84x = 178,738,013.95
  5. Step 5: Solve for x
    x = 178,738,013.95/17,787.84
  6. Step 6: Final answer
    x = 10,048.33

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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.