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Finding the Fourth Proportional to 18,417.81, 27,623.07 and 6,727.08

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Solution

The fourth proportional to 18,417.81, 27,623.07 and 6,727.08 is: 10,089.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,417.81 : 27,623.07 = 6,727.08 : x
  2. Step 2: Convert to fraction form
    18,417.81/27,623.07 = 6,727.08/x
  3. Step 3: Cross multiply
    18,417.81x = 27,623.07 × 6,727.08
  4. Step 4: Simplify right side
    18,417.81x = 185,822,601.74
  5. Step 5: Solve for x
    x = 185,822,601.74/18,417.81
  6. Step 6: Final answer
    x = 10,089.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.