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Finding the Fourth Proportional to 13,168.01, 18,177.83 and 8,394.51

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Solution

The fourth proportional to 13,168.01, 18,177.83 and 8,394.51 is: 11,588.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,168.01 : 18,177.83 = 8,394.51 : x
  2. Step 2: Convert to fraction form
    13,168.01/18,177.83 = 8,394.51/x
  3. Step 3: Cross multiply
    13,168.01x = 18,177.83 × 8,394.51
  4. Step 4: Simplify right side
    13,168.01x = 152,593,975.71
  5. Step 5: Solve for x
    x = 152,593,975.71/13,168.01
  6. Step 6: Final answer
    x = 11,588.23

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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.