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Finding the Fourth Proportional to 62,802.90, 86,668.74 and 34,508.61

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Solution

The fourth proportional to 62,802.90, 86,668.74 and 34,508.61 is: 47,622.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,802.90 : 86,668.74 = 34,508.61 : x
  2. Step 2: Convert to fraction form
    62,802.90/86,668.74 = 34,508.61/x
  3. Step 3: Cross multiply
    62,802.90x = 86,668.74 × 34,508.61
  4. Step 4: Simplify right side
    62,802.90x = 2,990,817,747.85
  5. Step 5: Solve for x
    x = 2,990,817,747.85/62,802.90
  6. Step 6: Final answer
    x = 47,622.29

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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.