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Finding the Fourth Proportional to 62,706.40, 86,531.38 and 34,409.84

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Solution

The fourth proportional to 62,706.40, 86,531.38 and 34,409.84 is: 47,483.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,706.40 : 86,531.38 = 34,409.84 : x
  2. Step 2: Convert to fraction form
    62,706.40/86,531.38 = 34,409.84/x
  3. Step 3: Cross multiply
    62,706.40x = 86,531.38 × 34,409.84
  4. Step 4: Simplify right side
    62,706.40x = 2,977,530,940.78
  5. Step 5: Solve for x
    x = 2,977,530,940.78/62,706.40
  6. Step 6: Final answer
    x = 47,483.68

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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.