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Finding the Fourth Proportional to 19,703.97, 27,192.17 and 10,751.98

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Solution

The fourth proportional to 19,703.97, 27,192.17 and 10,751.98 is: 14,838.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,703.97 : 27,192.17 = 10,751.98 : x
  2. Step 2: Convert to fraction form
    19,703.97/27,192.17 = 10,751.98/x
  3. Step 3: Cross multiply
    19,703.97x = 27,192.17 × 10,751.98
  4. Step 4: Simplify right side
    19,703.97x = 292,369,668.00
  5. Step 5: Solve for x
    x = 292,369,668.00/19,703.97
  6. Step 6: Final answer
    x = 14,838.11

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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.