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Finding the Fourth Proportional to 67,806.59, 101,702.05 and 17,890.67

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Solution

The fourth proportional to 67,806.59, 101,702.05 and 17,890.67 is: 26,833.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,806.59 : 101,702.05 = 17,890.67 : x
  2. Step 2: Convert to fraction form
    67,806.59/101,702.05 = 17,890.67/x
  3. Step 3: Cross multiply
    67,806.59x = 101,702.05 × 17,890.67
  4. Step 4: Simplify right side
    67,806.59x = 1,819,518,024.40
  5. Step 5: Solve for x
    x = 1,819,518,024.40/67,806.59
  6. Step 6: Final answer
    x = 26,833.94

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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.