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Finding the Fourth Proportional to 17,787.65, 26,684.19 and 6,695.10

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Solution

The fourth proportional to 17,787.65, 26,684.19 and 6,695.10 is: 10,043.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,787.65 : 26,684.19 = 6,695.10 : x
  2. Step 2: Convert to fraction form
    17,787.65/26,684.19 = 6,695.10/x
  3. Step 3: Cross multiply
    17,787.65x = 26,684.19 × 6,695.10
  4. Step 4: Simplify right side
    17,787.65x = 178,653,320.47
  5. Step 5: Solve for x
    x = 178,653,320.47/17,787.65
  6. Step 6: Final answer
    x = 10,043.67

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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.