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Finding the Fourth Proportional to 62,590, 86,374.20 and 34,296.80

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Solution

The fourth proportional to 62,590, 86,374.20 and 34,296.80 is: 47,329.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,590 : 86,374.20 = 34,296.80 : x
  2. Step 2: Convert to fraction form
    62,590/86,374.20 = 34,296.80/x
  3. Step 3: Cross multiply
    62,590x = 86,374.20 × 34,296.80
  4. Step 4: Simplify right side
    62,590x = 2,962,358,662.56
  5. Step 5: Solve for x
    x = 2,962,358,662.56/62,590
  6. Step 6: Final answer
    x = 47,329.58

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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.