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Finding the Fourth Proportional to 62,805.90, 86,671.16 and 34,510.98

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Solution

The fourth proportional to 62,805.90, 86,671.16 and 34,510.98 is: 47,624.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,805.90 : 86,671.16 = 34,510.98 : x
  2. Step 2: Convert to fraction form
    62,805.90/86,671.16 = 34,510.98/x
  3. Step 3: Cross multiply
    62,805.90x = 86,671.16 × 34,510.98
  4. Step 4: Simplify right side
    62,805.90x = 2,991,106,626.20
  5. Step 5: Solve for x
    x = 2,991,106,626.20/62,805.90
  6. Step 6: Final answer
    x = 47,624.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.