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Finding the Fourth Proportional to 18,594.97, 25,637.11 and 11,509.09

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Solution

The fourth proportional to 18,594.97, 25,637.11 and 11,509.09 is: 15,867.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,594.97 : 25,637.11 = 11,509.09 : x
  2. Step 2: Convert to fraction form
    18,594.97/25,637.11 = 11,509.09/x
  3. Step 3: Cross multiply
    18,594.97x = 25,637.11 × 11,509.09
  4. Step 4: Simplify right side
    18,594.97x = 295,059,713.46
  5. Step 5: Solve for x
    x = 295,059,713.46/18,594.97
  6. Step 6: Final answer
    x = 15,867.72

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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.