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Finding the Fourth Proportional to 18,574.76, 27,869.25 and 11,184.50

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Solution

The fourth proportional to 18,574.76, 27,869.25 and 11,184.50 is: 16,781.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,574.76 : 27,869.25 = 11,184.50 : x
  2. Step 2: Convert to fraction form
    18,574.76/27,869.25 = 11,184.50/x
  3. Step 3: Cross multiply
    18,574.76x = 27,869.25 × 11,184.50
  4. Step 4: Simplify right side
    18,574.76x = 311,703,626.63
  5. Step 5: Solve for x
    x = 311,703,626.63/18,574.76
  6. Step 6: Final answer
    x = 16,781.03

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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.