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Finding the Fourth Proportional to 19,605.50, 27,052.62 and 11,107.14

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Solution

The fourth proportional to 19,605.50, 27,052.62 and 11,107.14 is: 15,326.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,605.50 : 27,052.62 = 11,107.14 : x
  2. Step 2: Convert to fraction form
    19,605.50/27,052.62 = 11,107.14/x
  3. Step 3: Cross multiply
    19,605.50x = 27,052.62 × 11,107.14
  4. Step 4: Simplify right side
    19,605.50x = 300,477,237.71
  5. Step 5: Solve for x
    x = 300,477,237.71/19,605.50
  6. Step 6: Final answer
    x = 15,326.17

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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.