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Finding the Fourth Proportional to 17,787.94, 26,681.92 and 6,697.12

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Solution

The fourth proportional to 17,787.94, 26,681.92 and 6,697.12 is: 10,045.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,787.94 : 26,681.92 = 6,697.12 : x
  2. Step 2: Convert to fraction form
    17,787.94/26,681.92 = 6,697.12/x
  3. Step 3: Cross multiply
    17,787.94x = 26,681.92 × 6,697.12
  4. Step 4: Simplify right side
    17,787.94x = 178,691,990.77
  5. Step 5: Solve for x
    x = 178,691,990.77/17,787.94
  6. Step 6: Final answer
    x = 10,045.68

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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.