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Finding the Fourth Proportional to 17,390.70, 26,079.17 and 6,294.11

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Solution

The fourth proportional to 17,390.70, 26,079.17 and 6,294.11 is: 9,438.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,390.70 : 26,079.17 = 6,294.11 : x
  2. Step 2: Convert to fraction form
    17,390.70/26,079.17 = 6,294.11/x
  3. Step 3: Cross multiply
    17,390.70x = 26,079.17 × 6,294.11
  4. Step 4: Simplify right side
    17,390.70x = 164,145,002.82
  5. Step 5: Solve for x
    x = 164,145,002.82/17,390.70
  6. Step 6: Final answer
    x = 9,438.67

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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.