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Finding the Fourth Proportional to 19,673.13, 27,149.22 and 10,721.01

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Solution

The fourth proportional to 19,673.13, 27,149.22 and 10,721.01 is: 14,795.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,673.13 : 27,149.22 = 10,721.01 : x
  2. Step 2: Convert to fraction form
    19,673.13/27,149.22 = 10,721.01/x
  3. Step 3: Cross multiply
    19,673.13x = 27,149.22 × 10,721.01
  4. Step 4: Simplify right side
    19,673.13x = 291,067,059.11
  5. Step 5: Solve for x
    x = 291,067,059.11/19,673.13
  6. Step 6: Final answer
    x = 14,795.16

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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.