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Finding the Fourth Proportional to 19,617.98, 27,083.97 and 12,923.06

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Solution

The fourth proportional to 19,617.98, 27,083.97 and 12,923.06 is: 17,841.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,617.98 : 27,083.97 = 12,923.06 : x
  2. Step 2: Convert to fraction form
    19,617.98/27,083.97 = 12,923.06/x
  3. Step 3: Cross multiply
    19,617.98x = 27,083.97 × 12,923.06
  4. Step 4: Simplify right side
    19,617.98x = 350,007,769.35
  5. Step 5: Solve for x
    x = 350,007,769.35/19,617.98
  6. Step 6: Final answer
    x = 17,841.17

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1.5x scale

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.