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Finding the Fourth Proportional to 19,645.27, 27,111.07 and 10,693.35

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Solution

The fourth proportional to 19,645.27, 27,111.07 and 10,693.35 is: 14,757.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,645.27 : 27,111.07 = 10,693.35 : x
  2. Step 2: Convert to fraction form
    19,645.27/27,111.07 = 10,693.35/x
  3. Step 3: Cross multiply
    19,645.27x = 27,111.07 × 10,693.35
  4. Step 4: Simplify right side
    19,645.27x = 289,908,160.38
  5. Step 5: Solve for x
    x = 289,908,160.38/19,645.27
  6. Step 6: Final answer
    x = 14,757.15

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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.