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Finding the Fourth Proportional to 19,693.94, 27,182.80 and 11,201.04

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Solution

The fourth proportional to 19,693.94, 27,182.80 and 11,201.04 is: 15,460.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,693.94 : 27,182.80 = 11,201.04 : x
  2. Step 2: Convert to fraction form
    19,693.94/27,182.80 = 11,201.04/x
  3. Step 3: Cross multiply
    19,693.94x = 27,182.80 × 11,201.04
  4. Step 4: Simplify right side
    19,693.94x = 304,475,630.11
  5. Step 5: Solve for x
    x = 304,475,630.11/19,693.94
  6. Step 6: Final answer
    x = 15,460.37

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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.