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Finding the Fourth Proportional to 65,699.46, 98,545.09 and 26,228.21

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Solution

The fourth proportional to 65,699.46, 98,545.09 and 26,228.21 is: 39,340.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,699.46 : 98,545.09 = 26,228.21 : x
  2. Step 2: Convert to fraction form
    65,699.46/98,545.09 = 26,228.21/x
  3. Step 3: Cross multiply
    65,699.46x = 98,545.09 × 26,228.21
  4. Step 4: Simplify right side
    65,699.46x = 2,584,661,314.99
  5. Step 5: Solve for x
    x = 2,584,661,314.99/65,699.46
  6. Step 6: Final answer
    x = 39,340.68

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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.