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Finding the Fourth Proportional to 17,787.79, 26,681.68 and 6,696.96

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Solution

The fourth proportional to 17,787.79, 26,681.68 and 6,696.96 is: 10,045.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,787.79 : 26,681.68 = 6,696.96 : x
  2. Step 2: Convert to fraction form
    17,787.79/26,681.68 = 6,696.96/x
  3. Step 3: Cross multiply
    17,787.79x = 26,681.68 × 6,696.96
  4. Step 4: Simplify right side
    17,787.79x = 178,686,252.12
  5. Step 5: Solve for x
    x = 178,686,252.12/17,787.79
  6. Step 6: Final answer
    x = 10,045.45

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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.