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Finding the Fourth Proportional to 69,802.48, 104,703.80 and 17,213.04

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Solution

The fourth proportional to 69,802.48, 104,703.80 and 17,213.04 is: 25,819.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,802.48 : 104,703.80 = 17,213.04 : x
  2. Step 2: Convert to fraction form
    69,802.48/104,703.80 = 17,213.04/x
  3. Step 3: Cross multiply
    69,802.48x = 104,703.80 × 17,213.04
  4. Step 4: Simplify right side
    69,802.48x = 1,802,270,697.55
  5. Step 5: Solve for x
    x = 1,802,270,697.55/69,802.48
  6. Step 6: Final answer
    x = 25,819.58

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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.