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Finding the Fourth Proportional to 69,792.52, 104,673.06 and 19,871.52

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Solution

The fourth proportional to 69,792.52, 104,673.06 and 19,871.52 is: 29,802.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,792.52 : 104,673.06 = 19,871.52 : x
  2. Step 2: Convert to fraction form
    69,792.52/104,673.06 = 19,871.52/x
  3. Step 3: Cross multiply
    69,792.52x = 104,673.06 × 19,871.52
  4. Step 4: Simplify right side
    69,792.52x = 2,080,012,805.25
  5. Step 5: Solve for x
    x = 2,080,012,805.25/69,792.52
  6. Step 6: Final answer
    x = 29,802.80

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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.